Merge pull request #739 from nie-off/ueransim_rel17

Update ASN and NGAP files to 3GPP Release 17

src/asn/asn1c/UTF8String.c

@@ -0,0 +1,294 @@
+/*-
+ * Copyright (c) 2003, 2004, 2006 Lev Walkin <[email protected]>.
+ * All rights reserved.
+ * Redistribution and modifications are permitted subject to BSD license.
+ */
+#include <asn_internal.h>
+#include <UTF8String.h>
+
+/*
+ * UTF8String basic type description.
+ */
+static const ber_tlv_tag_t asn_DEF_UTF8String_tags[] = {
+	(ASN_TAG_CLASS_UNIVERSAL | (12 << 2)),	/* [UNIVERSAL 12] IMPLICIT ...*/
+	(ASN_TAG_CLASS_UNIVERSAL | (4 << 2)),	/* ... OCTET STRING */
+};
+asn_TYPE_operation_t asn_OP_UTF8String = {
+	OCTET_STRING_free,
+	UTF8String_print,
+	OCTET_STRING_compare,
+	OCTET_STRING_decode_ber,    /* Implemented in terms of OCTET STRING */
+	OCTET_STRING_encode_der,
+	OCTET_STRING_decode_xer_utf8,
+	OCTET_STRING_encode_xer_utf8,
+#ifdef	ASN_DISABLE_OER_SUPPORT
+	0,
+	0,
+#else
+	OCTET_STRING_decode_oer,
+	OCTET_STRING_encode_oer,
+#endif  /* ASN_DISABLE_OER_SUPPORT */
+#ifdef	ASN_DISABLE_PER_SUPPORT
+	0,
+	0,
+	0,
+	0,
+#else
+	OCTET_STRING_decode_uper,
+	OCTET_STRING_encode_uper,
+	OCTET_STRING_decode_aper,
+	OCTET_STRING_encode_aper,
+#endif	/* ASN_DISABLE_PER_SUPPORT */
+	UTF8String_random_fill,
+	0	/* Use generic outmost tag fetcher */
+};
+asn_TYPE_descriptor_t asn_DEF_UTF8String = {
+	"UTF8String",
+	"UTF8String",
+	&asn_OP_UTF8String,
+	asn_DEF_UTF8String_tags,
+	sizeof(asn_DEF_UTF8String_tags)
+	  / sizeof(asn_DEF_UTF8String_tags[0]) - 1,
+	asn_DEF_UTF8String_tags,
+	sizeof(asn_DEF_UTF8String_tags)
+	  / sizeof(asn_DEF_UTF8String_tags[0]),
+	{ 0, 0, UTF8String_constraint },
+	0, 0,	/* No members */
+	0	/* No specifics */
+};
+
+/*
+ * This is the table of length expectations.
+ * The second half of this table is only applicable to the long sequences.
+ */
+static const int UTF8String_ht[2][16] = {
+	{ /* 0x0 ... 0x7 */
+	  /* 0000..0111 */
+	  1, 1, 1, 1, 1, 1, 1, 1,
+	  /* 1000..1011(0), 1100..1101(2), 1110(3), 1111(-1) */
+	  0, 0, 0, 0, 2, 2, 3, -1 },
+	{ /* 0xF0 .. 0xF7 */
+	  /* 11110000..11110111 */
+	  4, 4, 4, 4, 4, 4, 4, 4,
+	  5, 5, 5, 5, 6, 6, -1, -1 }
+};
+static const int32_t UTF8String_mv[7] = { 0, 0,
+	0x00000080,
+	0x00000800,
+	0x00010000,
+	0x00200000,
+	0x04000000
+};
+
+/* Internal aliases for return codes */
+#define	U8E_TRUNC	-1	/* UTF-8 sequence truncated */
+#define	U8E_ILLSTART	-2	/* Illegal UTF-8 sequence start */
+#define	U8E_NOTCONT	-3	/* Continuation expectation failed */
+#define	U8E_NOTMIN	-4	/* Not minimal length encoding */
+#define	U8E_EINVAL	-5	/* Invalid arguments */
+
+int
+UTF8String_constraint(const asn_TYPE_descriptor_t *td, const void *sptr,
+                      asn_app_constraint_failed_f *ctfailcb, void *app_key) {
+    ssize_t len = UTF8String_length((const UTF8String_t *)sptr);
+	switch(len) {
+	case U8E_EINVAL:
+		ASN__CTFAIL(app_key, td, sptr,
+			"%s: value not given", td->name);
+		break;
+	case U8E_TRUNC:
+		ASN__CTFAIL(app_key, td, sptr,
+			"%s: truncated UTF-8 sequence (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		break;
+	case U8E_ILLSTART:
+		ASN__CTFAIL(app_key, td, sptr,
+			"%s: UTF-8 illegal start of encoding (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		break;
+	case U8E_NOTCONT:
+		ASN__CTFAIL(app_key, td, sptr,
+			"%s: UTF-8 not continuation (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		break;
+	case U8E_NOTMIN:
+		ASN__CTFAIL(app_key, td, sptr,
+			"%s: UTF-8 not minimal sequence (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		break;
+	}
+	return (len < 0) ? -1 : 0;
+}
+
+static ssize_t
+UTF8String__process(const UTF8String_t *st, uint32_t *dst, size_t dstlen) {
+	size_t length;
+	uint8_t *buf = st->buf;
+	uint8_t *end = buf + st->size;
+	uint32_t *dstend = dst + dstlen;
+
+	for(length = 0; buf < end; length++) {
+		int ch = *buf;
+		uint8_t *cend;
+		int32_t value;
+		int want;
+
+		/* Compute the sequence length */
+		want = UTF8String_ht[0][ch >> 4];
+		switch(want) {
+		case -1:
+			/* Second half of the table, long sequence */
+			want = UTF8String_ht[1][ch & 0x0F];
+			if(want != -1) break;
+			/* Fall through */
+		case 0:
+			return U8E_ILLSTART;
+		}
+
+		/* assert(want >= 1 && want <= 6) */
+
+		/* Check character sequence length */
+		if(buf + want > end) return U8E_TRUNC;
+
+		value = ch & (0xff >> want);
+		cend = buf + want;
+		for(buf++; buf < cend; buf++) {
+			ch = *buf;
+			if(ch < 0x80 || ch > 0xbf) return U8E_NOTCONT;
+			value = (value << 6) | (ch & 0x3F);
+		}
+		if(value < UTF8String_mv[want])
+			return U8E_NOTMIN;
+		if(dst < dstend)
+			*dst++ = value;	/* Record value */
+	}
+
+	if(dst < dstend) *dst = 0;	/* zero-terminate */
+
+	return length;
+}
+
+
+ssize_t
+UTF8String_length(const UTF8String_t *st) {
+	if(st && st->buf) {
+		return UTF8String__process(st, 0, 0);
+	} else {
+		return U8E_EINVAL;
+	}
+}
+
+size_t
+UTF8String_to_wcs(const UTF8String_t *st, uint32_t *dst, size_t dstlen) {
+	if(st && st->buf) {
+		ssize_t ret = UTF8String__process(st, dst, dstlen);
+		return (ret < 0) ? 0 : ret;
+	} else {
+		return 0;
+	}
+}
+
+int
+UTF8String_print(const asn_TYPE_descriptor_t *td, const void *sptr, int ilevel,
+                 asn_app_consume_bytes_f *cb, void *app_key) {
+    const UTF8String_t *st = (const UTF8String_t *)sptr;
+
+	(void)td;	/* Unused argument */
+	(void)ilevel;	/* Unused argument */
+
+	if(st && st->buf) {
+		return (cb(st->buf, st->size, app_key) < 0) ? -1 : 0;
+	} else {
+		return (cb("<absent>", 8, app_key) < 0) ? -1 : 0;
+	}
+}
+
+
+/*
+ * Biased function for randomizing UTF-8 sequences.
+ */
+static size_t
+UTF8String__random_char(uint8_t *b, size_t size) {
+    static const struct rnd_value {
+        const char *value;
+        size_t size;
+    } values[] = {{"\0", 1},
+                  {"\x01", 1},
+                  {"\x7f", 1},
+                  {"\xc2\xa2", 2},
+                  {"\xe2\x82\xac", 3},
+                  {"\xf0\x90\x8d\x88", 4},
+                  {"\xf4\x8f\xbf\xbf", 4}};
+
+    const struct rnd_value *v;
+    size_t max_idx = 0;
+
+    switch(size) {
+    case 0:
+        assert(size != 0);
+        return 0;
+    case 1:
+        max_idx = 2;
+        break;
+    case 2:
+        max_idx = 3;
+        break;
+    default:
+    case 4:
+        max_idx = sizeof(values) / sizeof(values[0]) - 1;
+        break;
+    }
+
+    v = &values[asn_random_between(0, max_idx)];
+    memcpy(b, v->value, v->size);
+    return v->size;
+}
+
+asn_random_fill_result_t
+UTF8String_random_fill(const asn_TYPE_descriptor_t *td, void **sptr,
+                       const asn_encoding_constraints_t *constraints,
+                       size_t max_length) {
+    asn_random_fill_result_t result_ok = {ARFILL_OK, 1};
+    asn_random_fill_result_t result_failed = {ARFILL_FAILED, 0};
+    asn_random_fill_result_t result_skipped = {ARFILL_SKIPPED, 0};
+    uint8_t *buf;
+    uint8_t *bend;
+    uint8_t *b;
+    size_t rnd_len;
+    size_t idx;
+    UTF8String_t *st;
+
+    if(max_length == 0 && !*sptr) return result_skipped;
+
+    /* Figure out how far we should go */
+    rnd_len = OCTET_STRING_random_length_constrained(td, constraints,
+                                                     max_length / 4);
+
+    buf = CALLOC(4, rnd_len + 1);
+    if(!buf) return result_failed;
+
+    bend = &buf[4 * rnd_len];
+
+    for(b = buf, idx = 0; idx < rnd_len; idx++) {
+        b += UTF8String__random_char(b, (bend - b));
+    }
+    *(uint8_t *)b = 0;
+
+    if(*sptr) {
+        st = *sptr;
+        FREEMEM(st->buf);
+    } else {
+        st = (OCTET_STRING_t *)(*sptr = CALLOC(1, sizeof(UTF8String_t)));
+        if(!st) {
+            FREEMEM(buf);
+            return result_failed;
+        }
+    }
+
+    st->buf = buf;
+    st->size = b - buf;
+
+    assert(UTF8String_length(st) == (ssize_t)rnd_len);
+
+    return result_ok;
+}

src/asn/asn1c/UTF8String.h

@@ -0,0 +1,63 @@
+/*-
+ * Copyright (c) 2003-2017 Lev Walkin <[email protected]>. All rights reserved.
+ * Redistribution and modifications are permitted subject to BSD license.
+ */
+#ifndef	_UTF8String_H_
+#define	_UTF8String_H_
+
+#include <OCTET_STRING.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef OCTET_STRING_t UTF8String_t;	/* Implemented via OCTET STRING */
+
+extern asn_TYPE_descriptor_t asn_DEF_UTF8String;
+extern asn_TYPE_operation_t asn_OP_UTF8String;
+
+asn_struct_print_f UTF8String_print;
+asn_constr_check_f UTF8String_constraint;
+asn_random_fill_f  UTF8String_random_fill;
+
+#define UTF8String_free         OCTET_STRING_free
+#define UTF8String_compare      OCTET_STRING_compare
+#define UTF8String_constraint   UTF8String_constraint
+#define UTF8String_decode_ber   OCTET_STRING_decode_ber
+#define UTF8String_encode_der   OCTET_STRING_encode_der
+#define UTF8String_decode_xer   OCTET_STRING_decode_xer_utf8
+#define UTF8String_encode_xer   OCTET_STRING_encode_xer_utf8
+#define UTF8String_decode_uper  OCTET_STRING_decode_uper
+#define UTF8String_encode_uper  OCTET_STRING_encode_uper
+#define UTF8String_decode_aper  OCTET_STRING_decode_aper
+#define UTF8String_encode_aper  OCTET_STRING_encode_aper
+
+/*
+ * Returns length of the given UTF-8 string in characters,
+ * or a negative error code:
+ * -1:	UTF-8 sequence truncated 
+ * -2:	Illegal UTF-8 sequence start
+ * -3:	Continuation expectation failed
+ * -4:	Not minimal length encoding
+ * -5:	Invalid arguments
+ */
+ssize_t UTF8String_length(const UTF8String_t *st);
+
+/*
+ * Convert the UTF-8 string into a sequence of wide characters.
+ * Returns the number of characters necessary.
+ * Returned value might be greater than dstlen.
+ * In case of conversion error, 0 is returned.
+ * 
+ * If st points to a valid UTF-8 string, calling
+ * 	UTF8String_to_wcs(st, 0, 0);
+ * is equivalent to
+ * 	UTF8String_length(const UTF8String_t *st);
+ */
+size_t UTF8String_to_wcs(const UTF8String_t *st, uint32_t *dst, size_t dstlen);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif	/* _UTF8String_H_ */