Merge remote-tracking branch 'github/master'

[stg.git] / libs / smux / constr_SEQUENCE.c

diff --git a/libs/smux/constr_SEQUENCE.c b/libs/smux/constr_SEQUENCE.c
index bc14ca5e441c56629c5ce8e61b850e9137b6e9bc..2fbf97b67150a405dccd94e59f06a452dae3cd99 100644 (file)
--- a/libs/smux/constr_SEQUENCE.c
+++ b/libs/smux/constr_SEQUENCE.c
@@ -1,10 +1,12 @@
-/*-
- * Copyright (c) 2003, 2004, 2005, 2006 Lev Walkin <vlm@lionet.info>.
+/*
+ * Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>.

  * All rights reserved.
  * Redistribution and modifications are permitted subject to BSD license.
  */
 #include <asn_internal.h>
 #include <constr_SEQUENCE.h>
  * All rights reserved.
  * Redistribution and modifications are permitted subject to BSD license.
  */
 #include <asn_internal.h>
 #include <constr_SEQUENCE.h>

+#include <OPEN_TYPE.h>
+#include <per_opentype.h>

 
 /*
  * Number of bytes left for this structure.
 
 /*
  * Number of bytes left for this structure.


@@ -33,7 +35,7 @@
 #undef ADVANCE
 #define        ADVANCE(num_bytes)      do {            \
                size_t num = num_bytes;         \
 #undef ADVANCE
 #define        ADVANCE(num_bytes)      do {            \
                size_t num = num_bytes;         \

-               ptr = ((const char *)ptr) + num;\
+               ptr = ((const char *)ptr) + num; \

                size -= num;                    \
                if(ctx->left >= 0)              \
                        ctx->left -= num;       \
                size -= num;                    \
                if(ctx->left >= 0)              \
                        ctx->left -= num;       \


@@ -64,10 +66,9 @@
 /*
  * Check whether we are inside the extensions group.
  */
 /*
  * Check whether we are inside the extensions group.
  */

-#define        IN_EXTENSION_GROUP(specs, memb_idx)     \
-       ( ((memb_idx) > (specs)->ext_after)     \
-       &&((memb_idx) < (specs)->ext_before))
-
+#define IN_EXTENSION_GROUP(specs, memb_idx) \
+    ((specs)->first_extension >= 0          \
+     && (unsigned)(specs)->first_extension <= (memb_idx))

 
 /*
  * Tags are canonically sorted in the tag2element map.
 
 /*
  * Tags are canonically sorted in the tag2element map.


@@ -108,15 +109,16 @@ _t2e_cmp(const void *ap, const void *bp) {
  * The decoder of the SEQUENCE type.
  */
 asn_dec_rval_t
  * The decoder of the SEQUENCE type.
  */
 asn_dec_rval_t

-SEQUENCE_decode_ber(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
-       void **struct_ptr, const void *ptr, size_t size, int tag_mode) {
-       /*
+SEQUENCE_decode_ber(const asn_codec_ctx_t *opt_codec_ctx,
+                    const asn_TYPE_descriptor_t *td, void **struct_ptr,
+                    const void *ptr, size_t size, int tag_mode) {
+    /*

         * Bring closer parts of structure description.
         */
         * Bring closer parts of structure description.
         */

-       asn_SEQUENCE_specifics_t *specs = (asn_SEQUENCE_specifics_t *)td->specifics;
-       asn_TYPE_member_t *elements = td->elements;
+       const asn_SEQUENCE_specifics_t *specs = (const asn_SEQUENCE_specifics_t *)td->specifics;
+    const asn_TYPE_member_t *elements = td->elements;

 
 

-       /*
+    /*

         * Parts of the structure being constructed.
         */
        void *st = *struct_ptr; /* Target structure. */
         * Parts of the structure being constructed.
         */
        void *st = *struct_ptr; /* Target structure. */


@@ -126,7 +128,7 @@ SEQUENCE_decode_ber(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
        asn_dec_rval_t rval;    /* Return code from subparsers */
 
        ssize_t consumed_myself = 0;    /* Consumed bytes from ptr */
        asn_dec_rval_t rval;    /* Return code from subparsers */
 
        ssize_t consumed_myself = 0;    /* Consumed bytes from ptr */

-       int edx;                        /* SEQUENCE element's index */
+       size_t edx;                     /* SEQUENCE element's index */

 
        ASN_DEBUG("Decoding %s as SEQUENCE", td->name);
        
 
        ASN_DEBUG("Decoding %s as SEQUENCE", td->name);
        


@@ -185,14 +187,14 @@ SEQUENCE_decode_ber(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
                 * that member:
                 *      step = (<member_number> * 2 + <microphase>).
                 */
                 * that member:
                 *      step = (<member_number> * 2 + <microphase>).
                 */

-         for(edx = (ctx->step >> 1); edx < td->elements_count;
+         for(edx = ((size_t)ctx->step >> 1); edx < td->elements_count;

                        edx++, ctx->step = (ctx->step & ~1) + 2) {
                void *memb_ptr;         /* Pointer to the member */
                void **memb_ptr2;       /* Pointer to that pointer */
                ssize_t tag_len;        /* Length of TLV's T */
                        edx++, ctx->step = (ctx->step & ~1) + 2) {
                void *memb_ptr;         /* Pointer to the member */
                void **memb_ptr2;       /* Pointer to that pointer */
                ssize_t tag_len;        /* Length of TLV's T */

-               int opt_edx_end;        /* Next non-optional element */
+               size_t opt_edx_end;     /* Next non-optional element */
+               size_t n;

                int use_bsearch;
                int use_bsearch;

-               int n;

 
                if(ctx->step & 1)
                        goto microphase2;
 
                if(ctx->step & 1)
                        goto microphase2;


@@ -200,36 +202,31 @@ SEQUENCE_decode_ber(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
                /*
                 * MICROPHASE 1: Synchronize decoding.
                 */
                /*
                 * MICROPHASE 1: Synchronize decoding.
                 */

-               ASN_DEBUG("In %s SEQUENCE left %d, edx=%d flags=%d"
+               ASN_DEBUG("In %s SEQUENCE left %d, edx=%" ASN_PRI_SIZE " flags=%d"

                                " opt=%d ec=%d",
                        td->name, (int)ctx->left, edx,
                        elements[edx].flags, elements[edx].optional,
                        td->elements_count);
 
                                " opt=%d ec=%d",
                        td->name, (int)ctx->left, edx,
                        elements[edx].flags, elements[edx].optional,
                        td->elements_count);
 

-               if(ctx->left == 0       /* No more stuff is expected */
-               && (
-                       /* Explicit OPTIONAL specification reaches the end */
-                       (edx + elements[edx].optional
-                                       == td->elements_count)
-                       ||
-                       /* All extensions are optional */
-                       (IN_EXTENSION_GROUP(specs, edx)
-                               && specs->ext_before > td->elements_count)
-                  )
-               ) {
-                       ASN_DEBUG("End of SEQUENCE %s", td->name);
-                       /*
-                        * Found the legitimate end of the structure.
-                        */
-                       PHASE_OUT(ctx);
-                       RETURN(RC_OK);
-               }
+        if(ctx->left == 0 /* No more stuff is expected */
+           && (
+                  /* Explicit OPTIONAL specification reaches the end */
+                  (edx + elements[edx].optional == td->elements_count) ||
+                  /* All extensions are optional */
+                  IN_EXTENSION_GROUP(specs, edx))) {
+            ASN_DEBUG("End of SEQUENCE %s", td->name);
+            /*
+             * Found the legitimate end of the structure.
+             */
+            PHASE_OUT(ctx);
+            RETURN(RC_OK);
+        }

 
                /*
                 * Fetch the T from TLV.
                 */
                tag_len = ber_fetch_tag(ptr, LEFT, &tlv_tag);
 
                /*
                 * Fetch the T from TLV.
                 */
                tag_len = ber_fetch_tag(ptr, LEFT, &tlv_tag);

-               ASN_DEBUG("Current tag in %s SEQUENCE for element %d "
+               ASN_DEBUG("Current tag in %s SEQUENCE for element %" ASN_PRI_SIZE " "

                        "(%s) is %s encoded in %d bytes, of frame %ld",
                        td->name, edx, elements[edx].name,
                        ber_tlv_tag_string(tlv_tag), (int)tag_len, (long)LEFT);
                        "(%s) is %s encoded in %d bytes, of frame %ld",
                        td->name, edx, elements[edx].name,
                        ber_tlv_tag_string(tlv_tag), (int)tag_len, (long)LEFT);


@@ -239,34 +236,31 @@ SEQUENCE_decode_ber(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
                case -1: RETURN(RC_FAIL);
                }
 
                case -1: RETURN(RC_FAIL);
                }
 

-               if(ctx->left < 0 && ((const uint8_t *)ptr)[0] == 0) {
-                       if(LEFT < 2) {
-                               if(SIZE_VIOLATION)
-                                       RETURN(RC_FAIL);
-                               else
-                                       RETURN(RC_WMORE);
-                       } else if(((const uint8_t *)ptr)[1] == 0) {
-                       ASN_DEBUG("edx = %d, opt = %d, ec=%d",
-                               edx, elements[edx].optional,
-                               td->elements_count);
-                               if((edx + elements[edx].optional
-                                       == td->elements_count)
-                               || (IN_EXTENSION_GROUP(specs, edx)
-                                       && specs->ext_before
-                                               > td->elements_count)) {
-                                       /*
-                                        * Yeah, baby! Found the terminator
-                                        * of the indefinite length structure.
-                                        */
-                                       /*
-                                        * Proceed to the canonical
-                                        * finalization function.
-                                        * No advancing is necessary.
-                                        */
-                                       goto phase3;
-                               }
-                       }
-               }
+        if(ctx->left < 0 && ((const uint8_t *)ptr)[0] == 0) {
+            if(LEFT < 2) {
+                if(SIZE_VIOLATION) {
+                    RETURN(RC_FAIL);
+                } else {
+                    RETURN(RC_WMORE);
+                }
+            } else if(((const uint8_t *)ptr)[1] == 0) {
+                ASN_DEBUG("edx = %" ASN_PRI_SIZE ", opt = %d, ec=%d", edx,
+                          elements[edx].optional, td->elements_count);
+                if((edx + elements[edx].optional == td->elements_count)
+                   || IN_EXTENSION_GROUP(specs, edx)) {
+                    /*
+                     * Yeah, baby! Found the terminator
+                     * of the indefinite length structure.
+                     */
+                    /*
+                     * Proceed to the canonical
+                     * finalization function.
+                     * No advancing is necessary.
+                     */
+                    goto phase3;
+                }
+            }
+        }

 
                /*
                 * Find the next available type with this tag.
 
                /*
                 * Find the next available type with this tag.


@@ -291,7 +285,7 @@ SEQUENCE_decode_ber(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
                                edx = n;
                                ctx->step = 1 + 2 * edx;        /* Remember! */
                                goto microphase2;
                                edx = n;
                                ctx->step = 1 + 2 * edx;        /* Remember! */
                                goto microphase2;

-                       } else if(elements[n].flags & ATF_OPEN_TYPE) {
+                       } else if(elements[n].flags & ATF_ANY_TYPE) {

                                /*
                                 * This is the ANY type, which may bear
                                 * any flag whatsoever.
                                /*
                                 * This is the ANY type, which may bear
                                 * any flag whatsoever.


@@ -309,17 +303,17 @@ SEQUENCE_decode_ber(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
                         * Resort to a binary search over
                         * sorted array of tags.
                         */
                         * Resort to a binary search over
                         * sorted array of tags.
                         */

-                       asn_TYPE_tag2member_t *t2m;
-                       asn_TYPE_tag2member_t key;
+                       const asn_TYPE_tag2member_t *t2m;
+                       asn_TYPE_tag2member_t key = {0, 0, 0, 0};

                        key.el_tag = tlv_tag;
                        key.el_no = edx;
                        key.el_tag = tlv_tag;
                        key.el_no = edx;

-                       t2m = (asn_TYPE_tag2member_t *)bsearch(&key,
+                       t2m = (const asn_TYPE_tag2member_t *)bsearch(&key,

                                specs->tag2el, specs->tag2el_count,
                                sizeof(specs->tag2el[0]), _t2e_cmp);
                        if(t2m) {
                                specs->tag2el, specs->tag2el_count,
                                sizeof(specs->tag2el[0]), _t2e_cmp);
                        if(t2m) {

-                               asn_TYPE_tag2member_t *best = 0;
-                               asn_TYPE_tag2member_t *t2m_f, *t2m_l;
-                               int edx_max = edx + elements[edx].optional;
+                               const asn_TYPE_tag2member_t *best = 0;
+                               const asn_TYPE_tag2member_t *t2m_f, *t2m_l;
+                               size_t edx_max = edx + elements[edx].optional;

                                /*
                                 * Rewind to the first element with that tag,
                                 * `cause bsearch() does not guarantee order.
                                /*
                                 * Rewind to the first element with that tag,
                                 * `cause bsearch() does not guarantee order.


@@ -346,8 +340,9 @@ SEQUENCE_decode_ber(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
                         * or an extension (...),
                         * or an end of the indefinite-length structure.
                         */
                         * or an extension (...),
                         * or an end of the indefinite-length structure.
                         */

-                       if(!IN_EXTENSION_GROUP(specs, edx)) {
-                               ASN_DEBUG("Unexpected tag %s (at %d)",
+                       if(!IN_EXTENSION_GROUP(specs,
+                               edx + elements[edx].optional)) {
+                               ASN_DEBUG("Unexpected tag %s (at %" ASN_PRI_SIZE ")",

                                        ber_tlv_tag_string(tlv_tag), edx);
                                ASN_DEBUG("Expected tag %s (%s)%s",
                                        ber_tlv_tag_string(elements[edx].tag),
                                        ber_tlv_tag_string(tlv_tag), edx);
                                ASN_DEBUG("Expected tag %s (%s)%s",
                                        ber_tlv_tag_string(elements[edx].tag),


@@ -358,7 +353,10 @@ SEQUENCE_decode_ber(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
                        } else {
                                /* Skip this tag */
                                ssize_t skip;
                        } else {
                                /* Skip this tag */
                                ssize_t skip;

+                               edx += elements[edx].optional;

 
 

+                               ASN_DEBUG("Skipping unexpected %s (at %" ASN_PRI_SIZE ")",
+                                       ber_tlv_tag_string(tlv_tag), edx);

                                skip = ber_skip_length(opt_codec_ctx,
                                        BER_TLV_CONSTRUCTED(ptr),
                                        (const char *)ptr + tag_len,
                                skip = ber_skip_length(opt_codec_ctx,
                                        BER_TLV_CONSTRUCTED(ptr),
                                        (const char *)ptr + tag_len,


@@ -404,11 +402,15 @@ SEQUENCE_decode_ber(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
                /*
                 * Invoke the member fetch routine according to member's type
                 */
                /*
                 * Invoke the member fetch routine according to member's type
                 */

-               rval = elements[edx].type->ber_decoder(opt_codec_ctx,
-                               elements[edx].type,
-                               memb_ptr2, ptr, LEFT,
-                               elements[edx].tag_mode);
-               ASN_DEBUG("In %s SEQUENCE decoded %d %s of %d "
+               if(elements[edx].flags & ATF_OPEN_TYPE) {
+                       rval = OPEN_TYPE_ber_get(opt_codec_ctx, td, st, &elements[edx], ptr, LEFT);
+        } else {
+                       rval = elements[edx].type->op->ber_decoder(opt_codec_ctx,
+                                       elements[edx].type,
+                                       memb_ptr2, ptr, LEFT,
+                                       elements[edx].tag_mode);
+               }
+               ASN_DEBUG("In %s SEQUENCE decoded %" ASN_PRI_SIZE " %s of %d "

                        "in %d bytes rval.code %d, size=%d",
                        td->name, edx, elements[edx].type->name,
                        (int)LEFT, (int)rval.consumed, rval.code, (int)size);
                        "in %d bytes rval.code %d, size=%d",
                        td->name, edx, elements[edx].type->name,
                        (int)LEFT, (int)rval.consumed, rval.code, (int)size);


@@ -432,6 +434,7 @@ SEQUENCE_decode_ber(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
 
        phase3:
                ctx->phase = 3;
 
        phase3:
                ctx->phase = 3;

+        /* Fall through */

        case 3: /* 00 and other tags expected */
        case 4: /* only 00's expected */
 
        case 3: /* 00 and other tags expected */
        case 4: /* only 00's expected */
 


@@ -505,13 +508,13 @@ SEQUENCE_decode_ber(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
  * The DER encoder of the SEQUENCE type.
  */
 asn_enc_rval_t
  * The DER encoder of the SEQUENCE type.
  */
 asn_enc_rval_t

-SEQUENCE_encode_der(asn_TYPE_descriptor_t *td,
-       void *sptr, int tag_mode, ber_tlv_tag_t tag,
-       asn_app_consume_bytes_f *cb, void *app_key) {
-       size_t computed_size = 0;
+SEQUENCE_encode_der(const asn_TYPE_descriptor_t *td, const void *sptr,
+                    int tag_mode, ber_tlv_tag_t tag,
+                    asn_app_consume_bytes_f *cb, void *app_key) {
+    size_t computed_size = 0;

        asn_enc_rval_t erval;
        ssize_t ret;
        asn_enc_rval_t erval;
        ssize_t ret;

-       int edx;
+       size_t edx;

 
        ASN_DEBUG("%s %s as SEQUENCE",
                cb?"Encoding":"Estimating", td->name);
 
        ASN_DEBUG("%s %s as SEQUENCE",
                cb?"Encoding":"Estimating", td->name);


@@ -521,24 +524,37 @@ SEQUENCE_encode_der(asn_TYPE_descriptor_t *td,
         */
        for(edx = 0; edx < td->elements_count; edx++) {
                asn_TYPE_member_t *elm = &td->elements[edx];
         */
        for(edx = 0; edx < td->elements_count; edx++) {
                asn_TYPE_member_t *elm = &td->elements[edx];

-               void *memb_ptr;
-               if(elm->flags & ATF_POINTER) {
-                       memb_ptr = *(void **)((char *)sptr + elm->memb_offset);
-                       if(!memb_ptr) {
-                               if(elm->optional) continue;
+
+               const void *memb_ptr;           /* Pointer to the member */
+        const void *const *memb_ptr2; /* Pointer to that pointer */
+
+        if(elm->flags & ATF_POINTER) {
+            memb_ptr2 =
+                (const void *const *)((const char *)sptr + elm->memb_offset);
+            if(!*memb_ptr2) {
+                               ASN_DEBUG("Element %s %" ASN_PRI_SIZE " not present",
+                                       elm->name, edx);
+                               if(elm->optional)
+                                       continue;

                                /* Mandatory element is missing */
                                /* Mandatory element is missing */

-                               _ASN_ENCODE_FAILED;
+                               ASN__ENCODE_FAILED;

                        }
                } else {
                        }
                } else {

-                       memb_ptr = (void *)((char *)sptr + elm->memb_offset);
+            memb_ptr = (const void *)((const char *)sptr + elm->memb_offset);
+            memb_ptr2 = &memb_ptr;

                }
                }

-               erval = elm->type->der_encoder(elm->type, memb_ptr,
+
+               /* Eliminate default values */
+               if(elm->default_value_cmp && elm->default_value_cmp(*memb_ptr2) == 0)
+                       continue;
+
+               erval = elm->type->op->der_encoder(elm->type, *memb_ptr2,

                        elm->tag_mode, elm->tag,
                        0, 0);
                if(erval.encoded == -1)
                        return erval;
                computed_size += erval.encoded;
                        elm->tag_mode, elm->tag,
                        0, 0);
                if(erval.encoded == -1)
                        return erval;
                computed_size += erval.encoded;

-               ASN_DEBUG("Member %d %s estimated %ld bytes",
+               ASN_DEBUG("Member %" ASN_PRI_SIZE " %s estimated %ld bytes",

                        edx, elm->name, (long)erval.encoded);
        }
 
                        edx, elm->name, (long)erval.encoded);
        }
 


@@ -548,10 +564,10 @@ SEQUENCE_encode_der(asn_TYPE_descriptor_t *td,
        ret = der_write_tags(td, computed_size, tag_mode, 1, tag, cb, app_key);
        ASN_DEBUG("Wrote tags: %ld (+%ld)", (long)ret, (long)computed_size);
        if(ret == -1)
        ret = der_write_tags(td, computed_size, tag_mode, 1, tag, cb, app_key);
        ASN_DEBUG("Wrote tags: %ld (+%ld)", (long)ret, (long)computed_size);
        if(ret == -1)

-               _ASN_ENCODE_FAILED;
+               ASN__ENCODE_FAILED;

        erval.encoded = computed_size + ret;
 
        erval.encoded = computed_size + ret;
 

-       if(!cb) _ASN_ENCODED_OK(erval);
+       if(!cb) ASN__ENCODED_OK(erval);

 
        /*
         * Encode all members.
 
        /*
         * Encode all members.


@@ -559,21 +575,28 @@ SEQUENCE_encode_der(asn_TYPE_descriptor_t *td,
        for(edx = 0; edx < td->elements_count; edx++) {
                asn_TYPE_member_t *elm = &td->elements[edx];
                asn_enc_rval_t tmperval;
        for(edx = 0; edx < td->elements_count; edx++) {
                asn_TYPE_member_t *elm = &td->elements[edx];
                asn_enc_rval_t tmperval;

-               void *memb_ptr;
+        const void *memb_ptr;           /* Pointer to the member */
+        const void *const *memb_ptr2;   /* Pointer to that pointer */

 
 

-               if(elm->flags & ATF_POINTER) {
-                       memb_ptr = *(void **)((char *)sptr + elm->memb_offset);
-                       if(!memb_ptr) continue;
+        if(elm->flags & ATF_POINTER) {
+            memb_ptr2 =
+                (const void *const *)((const char *)sptr + elm->memb_offset);
+            if(!*memb_ptr2) continue;

                } else {
                } else {

-                       memb_ptr = (void *)((char *)sptr + elm->memb_offset);
+            memb_ptr = (const void *)((const char *)sptr + elm->memb_offset);
+            memb_ptr2 = &memb_ptr;

                }
                }

-               tmperval = elm->type->der_encoder(elm->type, memb_ptr,
-                       elm->tag_mode, elm->tag,
-                       cb, app_key);
+
+               /* Eliminate default values */
+        if(elm->default_value_cmp && elm->default_value_cmp(*memb_ptr2) == 0)
+            continue;
+
+               tmperval = elm->type->op->der_encoder(elm->type, *memb_ptr2,
+                       elm->tag_mode, elm->tag, cb, app_key);

                if(tmperval.encoded == -1)
                        return tmperval;
                computed_size -= tmperval.encoded;
                if(tmperval.encoded == -1)
                        return tmperval;
                computed_size -= tmperval.encoded;

-               ASN_DEBUG("Member %d %s of SEQUENCE %s encoded in %ld bytes",
+               ASN_DEBUG("Member %" ASN_PRI_SIZE " %s of SEQUENCE %s encoded in %ld bytes",

                        edx, elm->name, td->name, (long)tmperval.encoded);
        }
 
                        edx, elm->name, td->name, (long)tmperval.encoded);
        }
 


@@ -581,32 +604,33 @@ SEQUENCE_encode_der(asn_TYPE_descriptor_t *td,
                /*
                 * Encoded size is not equal to the computed size.
                 */
                /*
                 * Encoded size is not equal to the computed size.
                 */

-               _ASN_ENCODE_FAILED;
+               ASN__ENCODE_FAILED;

 
 

-       _ASN_ENCODED_OK(erval);
+       ASN__ENCODED_OK(erval);

 }
 
 
 #undef XER_ADVANCE
 }
 
 
 #undef XER_ADVANCE

-#define        XER_ADVANCE(num_bytes)  do {                    \
-               size_t num = num_bytes;                 \
-               buf_ptr = ((const char *)buf_ptr) + num;\
-               size -= num;                            \
-               consumed_myself += num;                 \
-       } while(0)
+#define XER_ADVANCE(num_bytes)           \
+    do {                                 \
+        size_t num = (num_bytes);        \
+        ptr = ((const char *)ptr) + num; \
+        size -= num;                     \
+        consumed_myself += num;          \
+    } while(0)

 
 /*
  * Decode the XER (XML) data.
  */
 asn_dec_rval_t
 
 /*
  * Decode the XER (XML) data.
  */
 asn_dec_rval_t

-SEQUENCE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
-       void **struct_ptr, const char *opt_mname,
-               const void *buf_ptr, size_t size) {
-       /*
+SEQUENCE_decode_xer(const asn_codec_ctx_t *opt_codec_ctx,
+                    const asn_TYPE_descriptor_t *td, void **struct_ptr,
+                    const char *opt_mname, const void *ptr, size_t size) {
+    /*

         * Bring closer parts of structure description.
         */
         * Bring closer parts of structure description.
         */

-       asn_SEQUENCE_specifics_t *specs
-               = (asn_SEQUENCE_specifics_t *)td->specifics;
+       const asn_SEQUENCE_specifics_t *specs
+               = (const asn_SEQUENCE_specifics_t *)td->specifics;

        asn_TYPE_member_t *elements = td->elements;
        const char *xml_tag = opt_mname ? opt_mname : td->xml_tag;
 
        asn_TYPE_member_t *elements = td->elements;
        const char *xml_tag = opt_mname ? opt_mname : td->xml_tag;
 


@@ -618,8 +642,7 @@ SEQUENCE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
 
        asn_dec_rval_t rval;            /* Return value from a decoder */
        ssize_t consumed_myself = 0;    /* Consumed bytes from ptr */
 
        asn_dec_rval_t rval;            /* Return value from a decoder */
        ssize_t consumed_myself = 0;    /* Consumed bytes from ptr */

-       int edx;                        /* Element index */
-       int edx_end;
+       size_t edx;                     /* Element index */

 
        /*
         * Create the target structure if it is not present already.
 
        /*
         * Create the target structure if it is not present already.


@@ -654,24 +677,27 @@ SEQUENCE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
                 */
                if(ctx->phase == 2) {
                        asn_dec_rval_t tmprval;
                 */
                if(ctx->phase == 2) {
                        asn_dec_rval_t tmprval;

-                       void *memb_ptr;         /* Pointer to the member */
+                       void *memb_ptr_dontuse;         /* Pointer to the member */

                        void **memb_ptr2;       /* Pointer to that pointer */
 
                        elm = &td->elements[edx];
 
                        if(elm->flags & ATF_POINTER) {
                                /* Member is a pointer to another structure */
                        void **memb_ptr2;       /* Pointer to that pointer */
 
                        elm = &td->elements[edx];
 
                        if(elm->flags & ATF_POINTER) {
                                /* Member is a pointer to another structure */

-                               memb_ptr2 = (void **)((char *)st
-                                       + elm->memb_offset);
+                               memb_ptr2 = (void **)((char *)st + elm->memb_offset);

                        } else {
                        } else {

-                               memb_ptr = (char *)st + elm->memb_offset;
-                               memb_ptr2 = &memb_ptr;
+                               memb_ptr_dontuse = (char *)st + elm->memb_offset;
+                               memb_ptr2 = &memb_ptr_dontuse;  /* Only use of memb_ptr_dontuse */

                        }
 
                        }
 

-                       /* Invoke the inner type decoder, m.b. multiple times */
-                       tmprval = elm->type->xer_decoder(opt_codec_ctx,
-                                       elm->type, memb_ptr2, elm->name,
-                                       buf_ptr, size);
+                       if(elm->flags & ATF_OPEN_TYPE) {
+                               tmprval = OPEN_TYPE_xer_get(opt_codec_ctx, td, st, elm, ptr, size);
+                       } else {
+                               /* Invoke the inner type decoder, m.b. multiple times */
+                               tmprval = elm->type->op->xer_decoder(opt_codec_ctx,
+                                               elm->type, memb_ptr2, elm->name,
+                                               ptr, size);
+                       }

                        XER_ADVANCE(tmprval.consumed);
                        if(tmprval.code != RC_OK)
                                RETURN(tmprval.code);
                        XER_ADVANCE(tmprval.consumed);
                        if(tmprval.code != RC_OK)
                                RETURN(tmprval.code);


@@ -685,13 +711,14 @@ SEQUENCE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
                /*
                 * Get the next part of the XML stream.
                 */
                /*
                 * Get the next part of the XML stream.
                 */

-               ch_size = xer_next_token(&ctx->context, buf_ptr, size,
+               ch_size = xer_next_token(&ctx->context, ptr, size,

                        &ch_type);
                        &ch_type);

-               switch(ch_size) {
-               case -1: RETURN(RC_FAIL);
-               case 0:  RETURN(RC_WMORE);
-               default:
+               if(ch_size == -1) {
+                   RETURN(RC_FAIL);
+               } else {

                        switch(ch_type) {
                        switch(ch_type) {

+                       case PXER_WMORE:
+                               RETURN(RC_WMORE);

                        case PXER_COMMENT:      /* Got XML comment */
                        case PXER_TEXT:         /* Ignore free-standing text */
                                XER_ADVANCE(ch_size);   /* Skip silently */
                        case PXER_COMMENT:      /* Got XML comment */
                        case PXER_TEXT:         /* Ignore free-standing text */
                                XER_ADVANCE(ch_size);   /* Skip silently */


@@ -701,7 +728,7 @@ SEQUENCE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
                        }
                }
 
                        }
                }
 

-               tcv = xer_check_tag(buf_ptr, ch_size, xml_tag);
+               tcv = xer_check_tag(ptr, ch_size, xml_tag);

                ASN_DEBUG("XER/SEQUENCE: tcv = %d, ph=%d [%s]",
                        tcv, ctx->phase, xml_tag);
 
                ASN_DEBUG("XER/SEQUENCE: tcv = %d, ph=%d [%s]",
                        tcv, ctx->phase, xml_tag);
 


@@ -730,19 +757,13 @@ SEQUENCE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
                        ctx->phase = 0;
                        /* Fall through */
                case XCT_BOTH:
                        ctx->phase = 0;
                        /* Fall through */
                case XCT_BOTH:

-                       if(ctx->phase == 0) {
-                               if(edx >= td->elements_count
-                                  ||
-                                  /* Explicit OPTIONAL specs reaches the end */
-                                   (edx + elements[edx].optional
-                                       == td->elements_count)
-                                  ||
-                                  /* All extensions are optional */
-                                  (IN_EXTENSION_GROUP(specs, edx)
-                                       && specs->ext_before
-                                               > td->elements_count)
-                               ) {
-                                       XER_ADVANCE(ch_size);
+            if(ctx->phase == 0) {
+                if(edx >= td->elements_count ||
+                   /* Explicit OPTIONAL specs reaches the end */
+                   (edx + elements[edx].optional == td->elements_count) ||
+                   /* All extensions are optional */
+                   IN_EXTENSION_GROUP(specs, edx)) {
+                    XER_ADVANCE(ch_size);

                                        ctx->phase = 4; /* Phase out */
                                        RETURN(RC_OK);
                                } else {
                                        ctx->phase = 4; /* Phase out */
                                        RETURN(RC_OK);
                                } else {


@@ -761,7 +782,7 @@ SEQUENCE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
                case XCT_UNKNOWN_OP:
                case XCT_UNKNOWN_BO:
 
                case XCT_UNKNOWN_OP:
                case XCT_UNKNOWN_BO:
 

-                       ASN_DEBUG("XER/SEQUENCE: tcv=%d, ph=%d, edx=%d",
+                       ASN_DEBUG("XER/SEQUENCE: tcv=%d, ph=%d, edx=%" ASN_PRI_SIZE "",

                                tcv, ctx->phase, edx);
                        if(ctx->phase != 1) {
                                break;  /* Really unexpected */
                                tcv, ctx->phase, edx);
                        if(ctx->phase != 1) {
                                break;  /* Really unexpected */


@@ -771,14 +792,13 @@ SEQUENCE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
                                /*
                                 * Search which member corresponds to this tag.
                                 */
                                /*
                                 * Search which member corresponds to this tag.
                                 */

-                               edx_end = edx + elements[edx].optional + 1;
+                               size_t n;
+                               size_t edx_end = edx + elements[edx].optional + 1;

                                if(edx_end > td->elements_count)
                                        edx_end = td->elements_count;
                                if(edx_end > td->elements_count)
                                        edx_end = td->elements_count;

-                               int n;

                                for(n = edx; n < edx_end; n++) {
                                        elm = &td->elements[n];
                                for(n = edx; n < edx_end; n++) {
                                        elm = &td->elements[n];

-                                       tcv = xer_check_tag(buf_ptr,
-                                               ch_size, elm->name);
+                                       tcv = xer_check_tag(ptr, ch_size, elm->name);

                                        switch(tcv) {
                                        case XCT_BOTH:
                                        case XCT_OPENING:
                                        switch(tcv) {
                                        case XCT_BOTH:
                                        case XCT_OPENING:


@@ -800,7 +820,7 @@ SEQUENCE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
                                if(n != edx_end)
                                        continue;
                        } else {
                                if(n != edx_end)
                                        continue;
                        } else {

-                               ASN_DEBUG("Out of defined members: %d/%d",
+                               ASN_DEBUG("Out of defined members: %" ASN_PRI_SIZE "/%u",

                                        edx, td->elements_count);
                        }
 
                                        edx, td->elements_count);
                        }
 


@@ -808,7 +828,7 @@ SEQUENCE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
                        if(IN_EXTENSION_GROUP(specs,
                                edx + (edx < td->elements_count
                                        ? elements[edx].optional : 0))) {
                        if(IN_EXTENSION_GROUP(specs,
                                edx + (edx < td->elements_count
                                        ? elements[edx].optional : 0))) {

-                               ASN_DEBUG("Got anticipated extension at %d",
+                               ASN_DEBUG("Got anticipated extension at %" ASN_PRI_SIZE "",

                                        edx);
                                /*
                                 * Check for (XCT_BOTH or XCT_UNKNOWN_BO)
                                        edx);
                                /*
                                 * Check for (XCT_BOTH or XCT_UNKNOWN_BO)


@@ -831,12 +851,12 @@ SEQUENCE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
                }
 
                ASN_DEBUG("Unexpected XML tag in SEQUENCE [%c%c%c%c%c%c]",
                }
 
                ASN_DEBUG("Unexpected XML tag in SEQUENCE [%c%c%c%c%c%c]",

-                       size>0?((const char *)buf_ptr)[0]:'.',
-                       size>1?((const char *)buf_ptr)[1]:'.',
-                       size>2?((const char *)buf_ptr)[2]:'.',
-                       size>3?((const char *)buf_ptr)[3]:'.',
-                       size>4?((const char *)buf_ptr)[4]:'.',
-                       size>5?((const char *)buf_ptr)[5]:'.');
+                       size>0?((const char *)ptr)[0]:'.',
+                       size>1?((const char *)ptr)[1]:'.',
+                       size>2?((const char *)ptr)[2]:'.',
+                       size>3?((const char *)ptr)[3]:'.',
+                       size>4?((const char *)ptr)[4]:'.',
+                       size>5?((const char *)ptr)[5]:'.');

                break;
        }
 
                break;
        }
 


@@ -845,60 +865,77 @@ SEQUENCE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
 }
 
 asn_enc_rval_t
 }
 
 asn_enc_rval_t

-SEQUENCE_encode_xer(asn_TYPE_descriptor_t *td, void *sptr,
-       int ilevel, enum xer_encoder_flags_e flags,
-               asn_app_consume_bytes_f *cb, void *app_key) {
-       asn_enc_rval_t er;
-       int xcan = (flags & XER_F_CANONICAL);
-       int edx;
-
-       if(!sptr)
-               _ASN_ENCODE_FAILED;
-
-       er.encoded = 0;
-
-       for(edx = 0; edx < td->elements_count; edx++) {
-               asn_enc_rval_t tmper;
-               asn_TYPE_member_t *elm = &td->elements[edx];
-               void *memb_ptr;
-               const char *mname = elm->name;
-               unsigned int mlen = strlen(mname);
-
-               if(elm->flags & ATF_POINTER) {
-                       memb_ptr = *(void **)((char *)sptr + elm->memb_offset);
-                       if(!memb_ptr) {
-                               if(elm->optional)
-                                       continue;
-                               /* Mandatory element is missing */
-                               _ASN_ENCODE_FAILED;
-                       }
-               } else {
-                       memb_ptr = (void *)((char *)sptr + elm->memb_offset);
-               }
-
-               if(!xcan) _i_ASN_TEXT_INDENT(1, ilevel);
-               _ASN_CALLBACK3("<", 1, mname, mlen, ">", 1);
-
-               /* Print the member itself */
-               tmper = elm->type->xer_encoder(elm->type, memb_ptr,
-                       ilevel + 1, flags, cb, app_key);
-               if(tmper.encoded == -1) return tmper;
-
-               _ASN_CALLBACK3("</", 2, mname, mlen, ">", 1);
-               er.encoded += 5 + (2 * mlen) + tmper.encoded;
-       }
-
-       if(!xcan) _i_ASN_TEXT_INDENT(1, ilevel - 1);
-
-       _ASN_ENCODED_OK(er);
+SEQUENCE_encode_xer(const asn_TYPE_descriptor_t *td, const void *sptr,
+                    int ilevel, enum xer_encoder_flags_e flags,
+                    asn_app_consume_bytes_f *cb, void *app_key) {
+    asn_enc_rval_t er;
+    int xcan = (flags & XER_F_CANONICAL);
+    asn_TYPE_descriptor_t *tmp_def_val_td = 0;
+    void *tmp_def_val = 0;
+       size_t edx;
+
+    if(!sptr) ASN__ENCODE_FAILED;
+
+    er.encoded = 0;
+
+    for(edx = 0; edx < td->elements_count; edx++) {
+        asn_enc_rval_t tmper;
+        asn_TYPE_member_t *elm = &td->elements[edx];
+        const void *memb_ptr;
+        const char *mname = elm->name;
+        unsigned int mlen = strlen(mname);
+
+        if(elm->flags & ATF_POINTER) {
+            memb_ptr =
+                *(const void *const *)((const char *)sptr + elm->memb_offset);
+            if(!memb_ptr) {
+                assert(tmp_def_val == 0);
+                if(elm->default_value_set) {
+                    if(elm->default_value_set(&tmp_def_val)) {
+                        ASN__ENCODE_FAILED;
+                    } else {
+                        memb_ptr = tmp_def_val;
+                        tmp_def_val_td = elm->type;
+                    }
+                } else if(elm->optional) {
+                    continue;
+                } else {
+                    /* Mandatory element is missing */
+                    ASN__ENCODE_FAILED;
+                }
+            }
+        } else {
+            memb_ptr = (const void *)((const char *)sptr + elm->memb_offset);
+        }
+
+        if(!xcan) ASN__TEXT_INDENT(1, ilevel);
+        ASN__CALLBACK3("<", 1, mname, mlen, ">", 1);
+
+        /* Print the member itself */
+        tmper = elm->type->op->xer_encoder(elm->type, memb_ptr, ilevel + 1,
+                                           flags, cb, app_key);
+        if(tmp_def_val) {
+            ASN_STRUCT_FREE(*tmp_def_val_td, tmp_def_val);
+            tmp_def_val = 0;
+        }
+        if(tmper.encoded == -1) return tmper;
+        er.encoded += tmper.encoded;
+
+        ASN__CALLBACK3("</", 2, mname, mlen, ">", 1);
+    }
+
+    if(!xcan) ASN__TEXT_INDENT(1, ilevel - 1);
+
+    ASN__ENCODED_OK(er);

 cb_failed:
 cb_failed:

-       _ASN_ENCODE_FAILED;
+    if(tmp_def_val) ASN_STRUCT_FREE(*tmp_def_val_td, tmp_def_val);
+    ASN__ENCODE_FAILED;

 }
 
 int
 }
 
 int

-SEQUENCE_print(asn_TYPE_descriptor_t *td, const void *sptr, int ilevel,
-               asn_app_consume_bytes_f *cb, void *app_key) {
-       int edx;
+SEQUENCE_print(const asn_TYPE_descriptor_t *td, const void *sptr, int ilevel,
+               asn_app_consume_bytes_f *cb, void *app_key) {
+    size_t edx;

        int ret;
 
        if(!sptr) return (cb("<absent>", 8, app_key) < 0) ? -1 : 0;
        int ret;
 
        if(!sptr) return (cb("<absent>", 8, app_key) < 0) ? -1 : 0;


@@ -932,7 +969,7 @@ SEQUENCE_print(asn_TYPE_descriptor_t *td, const void *sptr, int ilevel,
                        return -1;
 
                /* Print the member itself */
                        return -1;
 
                /* Print the member itself */

-               ret = elm->type->print_struct(elm->type, memb_ptr, ilevel + 1,
+               ret = elm->type->op->print_struct(elm->type, memb_ptr, ilevel + 1,

                        cb, app_key);
                if(ret) return ret;
        }
                        cb, app_key);
                if(ret) return ret;
        }


@@ -944,8 +981,12 @@ SEQUENCE_print(asn_TYPE_descriptor_t *td, const void *sptr, int ilevel,
 }
 
 void
 }
 
 void

-SEQUENCE_free(asn_TYPE_descriptor_t *td, void *sptr, int contents_only) {
-       int edx;
+SEQUENCE_free(const asn_TYPE_descriptor_t *td, void *sptr,
+              enum asn_struct_free_method method) {
+    size_t edx;
+    const asn_SEQUENCE_specifics_t *specs =
+        (const asn_SEQUENCE_specifics_t *)td->specifics;
+    asn_struct_ctx_t *ctx; /* Decoder context */

 
        if(!td || !sptr)
                return;
 
        if(!td || !sptr)
                return;


@@ -965,18 +1006,31 @@ SEQUENCE_free(asn_TYPE_descriptor_t *td, void *sptr, int contents_only) {
                }
        }
 
                }
        }
 

-       if(!contents_only) {
-               FREEMEM(sptr);
-       }
+       /* Clean parsing context */
+       ctx = (asn_struct_ctx_t *)((char *)sptr + specs->ctx_offset);
+       FREEMEM(ctx->ptr);
+
+    switch(method) {
+    case ASFM_FREE_EVERYTHING:
+        FREEMEM(sptr);
+        break;
+    case ASFM_FREE_UNDERLYING:
+        break;
+    case ASFM_FREE_UNDERLYING_AND_RESET:
+        memset(
+            sptr, 0,
+            ((const asn_SEQUENCE_specifics_t *)(td->specifics))->struct_size);
+        break;
+    }

 }
 
 int
 }
 
 int

-SEQUENCE_constraint(asn_TYPE_descriptor_t *td, const void *sptr,
-               asn_app_constraint_failed_f *ctfailcb, void *app_key) {
-       int edx;
+SEQUENCE_constraint(const asn_TYPE_descriptor_t *td, const void *sptr,
+                    asn_app_constraint_failed_f *ctfailcb, void *app_key) {
+    size_t edx;

 
        if(!sptr) {
 
        if(!sptr) {

-               _ASN_CTFAIL(app_key, td,
+               ASN__CTFAIL(app_key, td, sptr,

                        "%s: value not given (%s:%d)",
                        td->name, __FILE__, __LINE__);
                return -1;
                        "%s: value not given (%s:%d)",
                        td->name, __FILE__, __LINE__);
                return -1;


@@ -994,7 +1048,7 @@ SEQUENCE_constraint(asn_TYPE_descriptor_t *td, const void *sptr,
                        if(!memb_ptr) {
                                if(elm->optional)
                                        continue;
                        if(!memb_ptr) {
                                if(elm->optional)
                                        continue;

-                               _ASN_CTFAIL(app_key, td,
+                               ASN__CTFAIL(app_key, td, sptr,

                                "%s: mandatory element %s absent (%s:%d)",
                                td->name, elm->name, __FILE__, __LINE__);
                                return -1;
                                "%s: mandatory element %s absent (%s:%d)",
                                td->name, elm->name, __FILE__, __LINE__);
                                return -1;


@@ -1003,82 +1057,85 @@ SEQUENCE_constraint(asn_TYPE_descriptor_t *td, const void *sptr,
                        memb_ptr = (const void *)((const char *)sptr + elm->memb_offset);
                }
 
                        memb_ptr = (const void *)((const char *)sptr + elm->memb_offset);
                }
 

-               if(elm->memb_constraints) {
-                       int ret = elm->memb_constraints(elm->type, memb_ptr,
+               if(elm->encoding_constraints.general_constraints) {
+                       int ret = elm->encoding_constraints.general_constraints(elm->type, memb_ptr,

                                ctfailcb, app_key);
                        if(ret) return ret;
                } else {
                                ctfailcb, app_key);
                        if(ret) return ret;
                } else {

-                       int ret = elm->type->check_constraints(elm->type,
+                       return elm->type->encoding_constraints.general_constraints(elm->type,

                                memb_ptr, ctfailcb, app_key);
                                memb_ptr, ctfailcb, app_key);

-                       if(ret) return ret;
-                       /*
-                        * Cannot inherit it earlier:
-                        * need to make sure we get the updated version.
-                        */
-                       elm->memb_constraints = elm->type->check_constraints;

                }
        }
 
        return 0;
 }
 
                }
        }
 
        return 0;
 }
 

+#ifndef ASN_DISABLE_PER_SUPPORT
+

 asn_dec_rval_t
 asn_dec_rval_t

-SEQUENCE_decode_uper(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
-       asn_per_constraints_t *constraints, void **sptr, asn_per_data_t *pd) {
-       asn_SEQUENCE_specifics_t *specs = (asn_SEQUENCE_specifics_t *)td->specifics;
+SEQUENCE_decode_uper(const asn_codec_ctx_t *opt_codec_ctx,
+                     const asn_TYPE_descriptor_t *td,
+                     const asn_per_constraints_t *constraints, void **sptr,
+                     asn_per_data_t *pd) {
+    const asn_SEQUENCE_specifics_t *specs = (const asn_SEQUENCE_specifics_t *)td->specifics;

        void *st = *sptr;       /* Target structure. */
        void *st = *sptr;       /* Target structure. */

-       int extpresent = 0;     /* Extension additions are present */
+       int extpresent;         /* Extension additions are present */

        uint8_t *opres;         /* Presence of optional root members */
        asn_per_data_t opmd;
        asn_dec_rval_t rv;
        uint8_t *opres;         /* Presence of optional root members */
        asn_per_data_t opmd;
        asn_dec_rval_t rv;

-       int edx;
+       size_t edx;

 
        (void)constraints;
 
 
        (void)constraints;
 

-       if(_ASN_STACK_OVERFLOW_CHECK(opt_codec_ctx))
-               _ASN_DECODE_FAILED;
+       if(ASN__STACK_OVERFLOW_CHECK(opt_codec_ctx))
+               ASN__DECODE_FAILED;

 
        if(!st) {
                st = *sptr = CALLOC(1, specs->struct_size);
 
        if(!st) {
                st = *sptr = CALLOC(1, specs->struct_size);

-               if(!st) _ASN_DECODE_FAILED;
+               if(!st) ASN__DECODE_FAILED;

        }
 
        ASN_DEBUG("Decoding %s as SEQUENCE (UPER)", td->name);
 
        /* Handle extensions */
        }
 
        ASN_DEBUG("Decoding %s as SEQUENCE (UPER)", td->name);
 
        /* Handle extensions */

-       if(specs->ext_before >= 0) {
+       if(specs->first_extension < 0) {
+               extpresent = 0;
+       } else {

                extpresent = per_get_few_bits(pd, 1);
                extpresent = per_get_few_bits(pd, 1);

-               if(extpresent < 0) _ASN_DECODE_STARVED;
+               if(extpresent < 0) ASN__DECODE_STARVED;

        }
 
        /* Prepare a place and read-in the presence bitmap */
        }
 
        /* Prepare a place and read-in the presence bitmap */

+       memset(&opmd, 0, sizeof(opmd));

        if(specs->roms_count) {
                opres = (uint8_t *)MALLOC(((specs->roms_count + 7) >> 3) + 1);
        if(specs->roms_count) {
                opres = (uint8_t *)MALLOC(((specs->roms_count + 7) >> 3) + 1);

-               if(!opres) _ASN_DECODE_FAILED;
+               if(!opres) ASN__DECODE_FAILED;

                /* Get the presence map */
                if(per_get_many_bits(pd, opres, 0, specs->roms_count)) {
                        FREEMEM(opres);
                /* Get the presence map */
                if(per_get_many_bits(pd, opres, 0, specs->roms_count)) {
                        FREEMEM(opres);

-                       _ASN_DECODE_STARVED;
+                       ASN__DECODE_STARVED;

                }
                opmd.buffer = opres;
                }
                opmd.buffer = opres;

-               opmd.nboff = 0;

                opmd.nbits = specs->roms_count;
                ASN_DEBUG("Read in presence bitmap for %s of %d bits (%x..)",
                        td->name, specs->roms_count, *opres);
        } else {
                opres = 0;
                opmd.nbits = specs->roms_count;
                ASN_DEBUG("Read in presence bitmap for %s of %d bits (%x..)",
                        td->name, specs->roms_count, *opres);
        } else {
                opres = 0;

-               memset(&opmd, 0, sizeof opmd);

        }
 
        /*
         * Get the sequence ROOT elements.
         */
        }
 
        /*
         * Get the sequence ROOT elements.
         */

-       for(edx = 0; edx < ((specs->ext_before < 0)
-                       ? td->elements_count : specs->ext_before + 1); edx++) {
-               asn_TYPE_member_t *elm = &td->elements[edx];
+    for(edx = 0;
+        edx < (specs->first_extension < 0 ? td->elements_count
+                                          : (size_t)specs->first_extension);
+        edx++) {
+        asn_TYPE_member_t *elm = &td->elements[edx];

                void *memb_ptr;         /* Pointer to the member */
                void **memb_ptr2;       /* Pointer to that pointer */
 
                void *memb_ptr;         /* Pointer to the member */
                void **memb_ptr2;       /* Pointer to that pointer */
 

+               assert(!IN_EXTENSION_GROUP(specs, edx));
+

                /* Fetch the pointer to this member */
                if(elm->flags & ATF_POINTER) {
                        memb_ptr2 = (void **)((char *)st + elm->memb_offset);
                /* Fetch the pointer to this member */
                if(elm->flags & ATF_POINTER) {
                        memb_ptr2 = (void **)((char *)st + elm->memb_offset);


@@ -1095,12 +1152,13 @@ SEQUENCE_decode_uper(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
                                (int)opmd.nboff, (int)opmd.nbits);
                        if(present == 0) {
                                /* This element is not present */
                                (int)opmd.nboff, (int)opmd.nbits);
                        if(present == 0) {
                                /* This element is not present */

-                               if(elm->default_value) {
+                               if(elm->default_value_set) {

                                        /* Fill-in DEFAULT */
                                        /* Fill-in DEFAULT */

-                                       if(elm->default_value(1, memb_ptr2)) {
+                                       if(elm->default_value_set(memb_ptr2)) {

                                                FREEMEM(opres);
                                                FREEMEM(opres);

-                                               _ASN_DECODE_FAILED;
+                                               ASN__DECODE_FAILED;

                                        }
                                        }

+                                       ASN_DEBUG("Filled-in default");

                                }
                                /* The member is just not present */
                                continue;
                                }
                                /* The member is just not present */
                                continue;


@@ -1109,9 +1167,14 @@ SEQUENCE_decode_uper(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
                }
 
                /* Fetch the member from the stream */
                }
 
                /* Fetch the member from the stream */

-               ASN_DEBUG("Decoding member %s in %s", elm->name, td->name);
-               rv = elm->type->uper_decoder(opt_codec_ctx, elm->type,
-                       elm->per_constraints, memb_ptr2, pd);
+               ASN_DEBUG("Decoding member \"%s\" in %s", elm->name, td->name);
+
+               if(elm->flags & ATF_OPEN_TYPE) {
+                       rv = OPEN_TYPE_uper_get(opt_codec_ctx, td, st, elm, pd);
+               } else {
+                       rv = elm->type->op->uper_decoder(opt_codec_ctx, elm->type,
+                                       elm->encoding_constraints.per_constraints, memb_ptr2, pd);
+               }

                if(rv.code != RC_OK) {
                        ASN_DEBUG("Failed decode %s in %s",
                                elm->name, td->name);
                if(rv.code != RC_OK) {
                        ASN_DEBUG("Failed decode %s in %s",
                                elm->name, td->name);


@@ -1120,132 +1183,444 @@ SEQUENCE_decode_uper(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
                }
        }
 
                }
        }
 

+       /* Optionality map is not needed anymore */
+       FREEMEM(opres);
+

        /*
         * Deal with extensions.
         */
        if(extpresent) {
        /*
         * Deal with extensions.
         */
        if(extpresent) {

-               ASN_DEBUG("Extensibility for %s: NOT IMPLEMENTED", td->name);
-               _ASN_DECODE_FAILED;
-       } else {
-               for(edx = specs->roms_count; edx < specs->roms_count
-                               + specs->aoms_count; edx++) {
-                       asn_TYPE_member_t *elm = &td->elements[edx];
-                       void *memb_ptr;         /* Pointer to the member */
-                       void **memb_ptr2;       /* Pointer to that pointer */
+               ssize_t bmlength;
+               uint8_t *epres;         /* Presence of extension members */
+               asn_per_data_t epmd;

 
 

-                       if(!elm->default_value) continue;
+               bmlength = uper_get_nslength(pd);
+               if(bmlength < 0) ASN__DECODE_STARVED;

 
 

-                       /* Fetch the pointer to this member */
-                       if(elm->flags & ATF_POINTER) {
-                               memb_ptr2 = (void **)((char *)st
-                                               + elm->memb_offset);
-                       } else {
-                               memb_ptr = (char *)st + elm->memb_offset;
-                               memb_ptr2 = &memb_ptr;
-                       }
+               ASN_DEBUG("Extensions %" ASN_PRI_SSIZE " present in %s", bmlength, td->name);

 
 

-                       /* Set default value */
-                       if(elm->default_value(1, memb_ptr2)) {
-                               FREEMEM(opres);
-                               _ASN_DECODE_FAILED;
+               epres = (uint8_t *)MALLOC((bmlength + 15) >> 3);
+               if(!epres) ASN__DECODE_STARVED;
+
+               /* Get the extensions map */
+               if(per_get_many_bits(pd, epres, 0, bmlength)) {
+                       FREEMEM(epres);
+                       ASN__DECODE_STARVED;
+               }
+
+               memset(&epmd, 0, sizeof(epmd));
+               epmd.buffer = epres;
+               epmd.nbits = bmlength;
+               ASN_DEBUG("Read in extensions bitmap for %s of %ld bits (%x..)",
+                       td->name, (long)bmlength, *epres);
+
+           /* Go over extensions and read them in */
+        for(edx = specs->first_extension; edx < td->elements_count; edx++) {
+            asn_TYPE_member_t *elm = &td->elements[edx];
+            void *memb_ptr;   /* Pointer to the member */
+            void **memb_ptr2; /* Pointer to that pointer */
+            int present;
+
+            /* Fetch the pointer to this member */
+            if(elm->flags & ATF_POINTER) {
+                memb_ptr2 = (void **)((char *)st + elm->memb_offset);
+            } else {
+                memb_ptr = (void *)((char *)st + elm->memb_offset);
+                memb_ptr2 = &memb_ptr;
+            }
+
+            present = per_get_few_bits(&epmd, 1);
+            if(present <= 0) {
+                if(present < 0) break; /* No more extensions */
+                continue;
+            }
+
+            ASN_DEBUG("Decoding member %s in %s %p", elm->name, td->name,
+                      *memb_ptr2);
+            rv = uper_open_type_get(opt_codec_ctx, elm->type,
+                                    elm->encoding_constraints.per_constraints,
+                                    memb_ptr2, pd);
+            if(rv.code != RC_OK) {
+                FREEMEM(epres);
+                return rv;
+            }
+           }
+
+               /* Skip over overflow extensions which aren't present
+                * in this system's version of the protocol */
+               for(;;) {
+                       ASN_DEBUG("Getting overflow extensions");
+                       switch(per_get_few_bits(&epmd, 1)) {
+                       case -1: break;
+                       case 0: continue;
+                       default:
+                               if(uper_open_type_skip(opt_codec_ctx, pd)) {
+                                       FREEMEM(epres);
+                                       ASN__DECODE_STARVED;
+                               }
+                ASN_DEBUG("Skipped overflow extension");
+                continue;

                        }
                        }

+                       break;

                }
                }

+
+               FREEMEM(epres);

        }
 
        }
 

+    if(specs->first_extension >= 0) {
+        unsigned i;
+        /* Fill DEFAULT members in extensions */
+        for(i = specs->roms_count; i < specs->roms_count + specs->aoms_count;
+            i++) {
+            asn_TYPE_member_t *elm;
+            void **memb_ptr2; /* Pointer to member pointer */
+
+            edx = specs->oms[i];
+            elm = &td->elements[edx];
+
+            if(!elm->default_value_set) continue;
+
+            /* Fetch the pointer to this member */
+            if(elm->flags & ATF_POINTER) {
+                memb_ptr2 = (void **)((char *)st + elm->memb_offset);
+                if(*memb_ptr2) continue;
+            } else {
+                continue; /* Extensions are all optionals */
+            }
+
+            /* Set default value */
+            if(elm->default_value_set(memb_ptr2)) {
+                ASN__DECODE_FAILED;
+            }
+        }
+    }
+

        rv.consumed = 0;
        rv.code = RC_OK;
        rv.consumed = 0;
        rv.code = RC_OK;

-       FREEMEM(opres);

        return rv;
 }
 
        return rv;
 }
 

+static int
+SEQUENCE__handle_extensions(const asn_TYPE_descriptor_t *td, const void *sptr,
+                            asn_per_outp_t *po1, asn_per_outp_t *po2) {
+    const asn_SEQUENCE_specifics_t *specs =
+        (const asn_SEQUENCE_specifics_t *)td->specifics;
+    int exts_present = 0;
+    int exts_count = 0;
+    size_t edx;
+
+    if(specs->first_extension < 0) {
+        return 0;
+    }
+
+    /* Find out which extensions are present */
+    for(edx = specs->first_extension; edx < td->elements_count; edx++) {
+        asn_TYPE_member_t *elm = &td->elements[edx];
+        const void *memb_ptr;         /* Pointer to the member */
+        const void *const *memb_ptr2; /* Pointer to that pointer */
+        int present;
+
+        /* Fetch the pointer to this member */
+        if(elm->flags & ATF_POINTER) {
+            memb_ptr2 =
+                (const void *const *)((const char *)sptr + elm->memb_offset);
+            present = (*memb_ptr2 != 0);
+        } else {
+            memb_ptr = (const void *)((const char *)sptr + elm->memb_offset);
+            memb_ptr2 = &memb_ptr;
+                       present = 1;
+               }
+
+        ASN_DEBUG("checking %s:%s (@%" ASN_PRI_SIZE ") present => %d", elm->name,
+                  elm->type->name, edx, present);
+        exts_count++;
+        exts_present += present;
+
+        /* Encode as presence marker */
+        if(po1 && per_put_few_bits(po1, present, 1)) {
+            return -1;
+        }
+        /* Encode as open type field */
+        if(po2 && present
+           && uper_open_type_put(elm->type,
+                                 elm->encoding_constraints.per_constraints,
+                                 *memb_ptr2, po2))
+            return -1;
+    }
+
+    return exts_present ? exts_count : 0;
+}
+

 asn_enc_rval_t
 asn_enc_rval_t

-SEQUENCE_encode_uper(asn_TYPE_descriptor_t *td,
-       asn_per_constraints_t *constraints, void *sptr, asn_per_outp_t *po) {
-       asn_SEQUENCE_specifics_t *specs
-               = (asn_SEQUENCE_specifics_t *)td->specifics;
+SEQUENCE_encode_uper(const asn_TYPE_descriptor_t *td,
+                     const asn_per_constraints_t *constraints, const void *sptr,
+                     asn_per_outp_t *po) {
+    const asn_SEQUENCE_specifics_t *specs
+               = (const asn_SEQUENCE_specifics_t *)td->specifics;

        asn_enc_rval_t er;
        asn_enc_rval_t er;

-       int edx;
-       int i;
+       int n_extensions;
+       size_t edx;
+       size_t i;

 
        (void)constraints;
 
        if(!sptr)
 
        (void)constraints;
 
        if(!sptr)

-               _ASN_ENCODE_FAILED;
+               ASN__ENCODE_FAILED;

 
        er.encoded = 0;
 
        ASN_DEBUG("Encoding %s as SEQUENCE (UPER)", td->name);
 
        er.encoded = 0;
 
        ASN_DEBUG("Encoding %s as SEQUENCE (UPER)", td->name);

-       if(specs->ext_before >= 0)
-               _ASN_ENCODE_FAILED;     /* We don't encode extensions yet */
+
+       /*
+        * X.691#18.1 Whether structure is extensible
+        * and whether to encode extensions
+        */
+    if(specs->first_extension < 0) {
+        n_extensions = 0; /* There are no extensions to encode */
+    } else {
+        n_extensions = SEQUENCE__handle_extensions(td, sptr, 0, 0);
+        if(n_extensions < 0) ASN__ENCODE_FAILED;
+        if(per_put_few_bits(po, n_extensions ? 1 : 0, 1)) {
+            ASN__ENCODE_FAILED;
+        }
+    }

 
        /* Encode a presence bitmap */
        for(i = 0; i < specs->roms_count; i++) {
                asn_TYPE_member_t *elm;
 
        /* Encode a presence bitmap */
        for(i = 0; i < specs->roms_count; i++) {
                asn_TYPE_member_t *elm;

-               void *memb_ptr;         /* Pointer to the member */
-               void **memb_ptr2;       /* Pointer to that pointer */
-               int present;
+               const void *memb_ptr;           /* Pointer to the member */
+        const void *const *memb_ptr2; /* Pointer to that pointer */
+        int present;

 
                edx = specs->oms[i];
                elm = &td->elements[edx];
 
                /* Fetch the pointer to this member */
                if(elm->flags & ATF_POINTER) {
 
                edx = specs->oms[i];
                elm = &td->elements[edx];
 
                /* Fetch the pointer to this member */
                if(elm->flags & ATF_POINTER) {

-                       memb_ptr2 = (void **)((char *)sptr + elm->memb_offset);
-                       present = (*memb_ptr2 != 0);
+            memb_ptr2 =
+                (const void *const *)((const char *)sptr + elm->memb_offset);
+            present = (*memb_ptr2 != 0);

                } else {
                } else {

-                       memb_ptr = (void *)((char *)sptr + elm->memb_offset);
-                       memb_ptr2 = &memb_ptr;
+            memb_ptr = (const void *)((const char *)sptr + elm->memb_offset);
+            memb_ptr2 = &memb_ptr;

                        present = 1;
                }
 
                /* Eliminate default values */
                        present = 1;
                }
 
                /* Eliminate default values */

-               if(present && elm->default_value
-               && elm->default_value(0, memb_ptr2) == 1)
-                       present = 0;
+        if(present && elm->default_value_cmp
+           && elm->default_value_cmp(*memb_ptr2) == 0)
+            present = 0;

 
                ASN_DEBUG("Element %s %s %s->%s is %s",
                        elm->flags & ATF_POINTER ? "ptr" : "inline",
 
                ASN_DEBUG("Element %s %s %s->%s is %s",
                        elm->flags & ATF_POINTER ? "ptr" : "inline",

-                       elm->default_value ? "def" : "wtv",
+                       elm->default_value_cmp ? "def" : "wtv",

                        td->name, elm->name, present ? "present" : "absent");
                if(per_put_few_bits(po, present, 1))
                        td->name, elm->name, present ? "present" : "absent");
                if(per_put_few_bits(po, present, 1))

-                       _ASN_ENCODE_FAILED;
+                       ASN__ENCODE_FAILED;

        }
 
        /*
        }
 
        /*

-        * Get the sequence ROOT elements.
+        * Encode the sequence ROOT elements.

         */
         */

-       for(edx = 0; edx < ((specs->ext_before < 0)
-                       ? td->elements_count : specs->ext_before + 1); edx++) {
+    ASN_DEBUG("first_extension = %d, elements = %d", specs->first_extension,
+              td->elements_count);
+       for(edx = 0;
+               edx < ((specs->first_extension < 0) ? td->elements_count
+                                            : (size_t)specs->first_extension);
+               edx++) {

                asn_TYPE_member_t *elm = &td->elements[edx];
                asn_TYPE_member_t *elm = &td->elements[edx];

-               void *memb_ptr;         /* Pointer to the member */
-               void **memb_ptr2;       /* Pointer to that pointer */
+               const void *memb_ptr;         /* Pointer to the member */
+               const void *const *memb_ptr2; /* Pointer to that pointer */
+
+               ASN_DEBUG("About to encode %s", elm->type->name);

 
                /* Fetch the pointer to this member */
                if(elm->flags & ATF_POINTER) {
 
                /* Fetch the pointer to this member */
                if(elm->flags & ATF_POINTER) {

-                       memb_ptr2 = (void **)((char *)sptr + elm->memb_offset);
-                       if(!*memb_ptr2) {
-                               ASN_DEBUG("Element %s %d not present",
+            memb_ptr2 =
+                (const void *const *)((const char *)sptr + elm->memb_offset);
+            if(!*memb_ptr2) {
+                               ASN_DEBUG("Element %s %" ASN_PRI_SIZE " not present",

                                        elm->name, edx);
                                if(elm->optional)
                                        continue;
                                /* Mandatory element is missing */
                                        elm->name, edx);
                                if(elm->optional)
                                        continue;
                                /* Mandatory element is missing */

-                               _ASN_ENCODE_FAILED;
+                               ASN__ENCODE_FAILED;

                        }
                } else {
                        }
                } else {

-                       memb_ptr = (void *)((char *)sptr + elm->memb_offset);
-                       memb_ptr2 = &memb_ptr;
+            memb_ptr = (const void *)((const char *)sptr + elm->memb_offset);
+            memb_ptr2 = &memb_ptr;

                }
 
                /* Eliminate default values */
                }
 
                /* Eliminate default values */

-               if(elm->default_value && elm->default_value(0, memb_ptr2) == 1)
+               if(elm->default_value_cmp && elm->default_value_cmp(*memb_ptr2) == 0)

                        continue;
 
                        continue;
 

-               er = elm->type->uper_encoder(elm->type, elm->per_constraints,
-                       *memb_ptr2, po);
-               if(er.encoded == -1)
-                       return er;
-       }
+        ASN_DEBUG("Encoding %s->%s:%s", td->name, elm->name, elm->type->name);
+        er = elm->type->op->uper_encoder(
+            elm->type, elm->encoding_constraints.per_constraints, *memb_ptr2,
+            po);
+        if(er.encoded == -1) return er;
+    }
+
+       /* No extensions to encode */
+       if(!n_extensions) ASN__ENCODED_OK(er);
+
+       ASN_DEBUG("Length of extensions %d bit-map", n_extensions);
+       /* #18.8. Write down the presence bit-map length. */
+       if(uper_put_nslength(po, n_extensions))
+               ASN__ENCODE_FAILED;
+
+       ASN_DEBUG("Bit-map of %d elements", n_extensions);
+       /* #18.7. Encoding the extensions presence bit-map. */
+       /* TODO: act upon NOTE in #18.7 for canonical PER */
+       if(SEQUENCE__handle_extensions(td, sptr, po, 0) != n_extensions)
+               ASN__ENCODE_FAILED;
+
+       ASN_DEBUG("Writing %d extensions", n_extensions);
+       /* #18.9. Encode extensions as open type fields. */
+       if(SEQUENCE__handle_extensions(td, sptr, 0, po) != n_extensions)
+               ASN__ENCODE_FAILED;
+
+       ASN__ENCODED_OK(er);
+}
+
+#endif  /* ASN_DISABLE_PER_SUPPORT */
+
+int
+SEQUENCE_compare(const asn_TYPE_descriptor_t *td, const void *aptr,
+                 const void *bptr) {
+    size_t edx;
+
+       for(edx = 0; edx < td->elements_count; edx++) {
+               asn_TYPE_member_t *elm = &td->elements[edx];
+               const void *amemb;
+               const void *bmemb;
+        int ret;
+
+               if(elm->flags & ATF_POINTER) {
+            amemb =
+                *(const void *const *)((const char *)aptr + elm->memb_offset);
+            bmemb =
+                *(const void *const *)((const char *)bptr + elm->memb_offset);
+            if(!amemb) {
+                if(!bmemb) continue;
+                if(elm->default_value_cmp
+                   && elm->default_value_cmp(bmemb) == 0) {
+                    /* A is absent, but B is present and equal to DEFAULT */
+                    continue;
+                }
+                return -1;
+            } else if(!bmemb) {
+                if(elm->default_value_cmp
+                   && elm->default_value_cmp(amemb) == 0) {
+                    /* B is absent, but A is present and equal to DEFAULT */
+                    continue;
+                }
+                return 1;
+            }
+               } else {
+            amemb = (const void *)((const char *)aptr + elm->memb_offset);
+            bmemb = (const void *)((const char *)bptr + elm->memb_offset);
+               }
+
+        ret = elm->type->op->compare_struct(elm->type, amemb, bmemb);
+        if(ret != 0) return ret;
+    }
+
+    return 0;
+}

 
 

-       _ASN_ENCODED_OK(er);
+asn_TYPE_operation_t asn_OP_SEQUENCE = {
+       SEQUENCE_free,
+       SEQUENCE_print,
+       SEQUENCE_compare,
+       SEQUENCE_decode_ber,
+       SEQUENCE_encode_der,
+       SEQUENCE_decode_xer,
+       SEQUENCE_encode_xer,
+#ifdef ASN_DISABLE_OER_SUPPORT
+       0,
+       0,
+#else
+       SEQUENCE_decode_oer,
+       SEQUENCE_encode_oer,
+#endif  /* ASN_DISABLE_OER_SUPPORT */
+#ifdef ASN_DISABLE_PER_SUPPORT
+       0,
+       0,
+#else
+       SEQUENCE_decode_uper,
+       SEQUENCE_encode_uper,
+#endif /* ASN_DISABLE_PER_SUPPORT */
+       SEQUENCE_random_fill,
+       0       /* Use generic outmost tag fetcher */
+};
+
+
+asn_random_fill_result_t
+SEQUENCE_random_fill(const asn_TYPE_descriptor_t *td, void **sptr,
+                   const asn_encoding_constraints_t *constr,
+                   size_t max_length) {
+    const asn_SEQUENCE_specifics_t *specs =
+        (const asn_SEQUENCE_specifics_t *)td->specifics;
+    asn_random_fill_result_t result_ok = {ARFILL_OK, 0};
+    asn_random_fill_result_t result_failed = {ARFILL_FAILED, 0};
+    asn_random_fill_result_t result_skipped = {ARFILL_SKIPPED, 0};
+    void *st = *sptr;
+    size_t edx;
+
+    if(max_length == 0) return result_skipped;
+
+    (void)constr;
+
+    if(st == NULL) {
+        st = CALLOC(1, specs->struct_size);
+        if(st == NULL) {
+            return result_failed;
+        }
+    }
+
+    for(edx = 0; edx < td->elements_count; edx++) {
+        const asn_TYPE_member_t *elm = &td->elements[edx];
+        void *memb_ptr;   /* Pointer to the member */
+        void **memb_ptr2; /* Pointer to that pointer */
+        asn_random_fill_result_t tmpres;
+
+        if(elm->optional && asn_random_between(0, 4) == 2) {
+            /* Sometimes decide not to fill the optional value */
+            continue;
+        }
+
+        if(elm->flags & ATF_POINTER) {
+            /* Member is a pointer to another structure */
+            memb_ptr2 = (void **)((char *)st + elm->memb_offset);
+        } else {
+            memb_ptr = (char *)st + elm->memb_offset;
+            memb_ptr2 = &memb_ptr;
+        }
+
+        tmpres = elm->type->op->random_fill(
+            elm->type, memb_ptr2, &elm->encoding_constraints,
+            max_length > result_ok.length ? max_length - result_ok.length : 0);
+        switch(tmpres.code) {
+        case ARFILL_OK:
+            result_ok.length += tmpres.length;
+            continue;
+        case ARFILL_SKIPPED:
+            assert(!(elm->flags & ATF_POINTER) || *memb_ptr2 == NULL);
+            continue;
+        case ARFILL_FAILED:
+            if(st == *sptr) {
+                ASN_STRUCT_RESET(*td, st);
+            } else {
+                ASN_STRUCT_FREE(*td, st);
+            }
+            return tmpres;
+        }
+    }
+
+    *sptr = st;
+
+    return result_ok;

 }
 
 }