--- /dev/null
+/*\r
+ * Copyright (c) 2005-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.\r
+ * Redistribution and modifications are permitted subject to BSD license.\r
+ */\r
+#ifndef _PER_SUPPORT_H_\r
+#define _PER_SUPPORT_H_\r
+\r
+#include <asn_system.h> /* Platform-specific types */\r
+#include <asn_bit_data.h>\r
+\r
+#ifdef __cplusplus\r
+extern "C" {\r
+#endif\r
+\r
+/*\r
+ * Pre-computed PER constraints.\r
+ */\r
+typedef struct asn_per_constraint_s {\r
+ enum asn_per_constraint_flags {\r
+ APC_UNCONSTRAINED = 0x0, /* No PER visible constraints */\r
+ APC_SEMI_CONSTRAINED = 0x1, /* Constrained at "lb" */\r
+ APC_CONSTRAINED = 0x2, /* Fully constrained */\r
+ APC_EXTENSIBLE = 0x4 /* May have extension */\r
+ } flags;\r
+ int range_bits; /* Full number of bits in the range */\r
+ int effective_bits; /* Effective bits */\r
+ long lower_bound; /* "lb" value */\r
+ long upper_bound; /* "ub" value */\r
+} asn_per_constraint_t;\r
+typedef struct asn_per_constraints_s {\r
+ asn_per_constraint_t value;\r
+ asn_per_constraint_t size;\r
+ int (*value2code)(unsigned int value);\r
+ int (*code2value)(unsigned int code);\r
+} asn_per_constraints_t;\r
+\r
+/* Temporary compatibility layer. Will get removed. */\r
+typedef struct asn_bit_data_s asn_per_data_t;\r
+#define per_get_few_bits(data, bits) asn_get_few_bits(data, bits)\r
+#define per_get_undo(data, bits) asn_get_undo(data, bits)\r
+#define per_get_many_bits(data, dst, align, bits) \\r
+ asn_get_many_bits(data, dst, align, bits)\r
+\r
+/*\r
+ * X.691 (08/2015) #11.9 "General rules for encoding a length determinant"\r
+ * Get the length "n" from the Unaligned PER stream.\r
+ */\r
+ssize_t uper_get_length(asn_per_data_t *pd, int effective_bound_bits,\r
+ size_t lower_bound, int *repeat);\r
+\r
+ssize_t aper_get_length(asn_per_data_t *pd, int range,\r
+ int effective_bound_bits, int *repeat);\r
+\r
+/*\r
+ * Get the normally small length "n".\r
+ */\r
+ssize_t uper_get_nslength(asn_per_data_t *pd);\r
+ssize_t aper_get_nslength(asn_per_data_t *pd);\r
+\r
+/*\r
+ * Get the normally small non-negative whole number.\r
+ */\r
+ssize_t uper_get_nsnnwn(asn_per_data_t *pd);\r
+ssize_t aper_get_nsnnwn(asn_per_data_t *pd, int range);\r
+\r
+/* X.691-2008/11, #11.5.6 */\r
+int uper_get_constrained_whole_number(asn_per_data_t *pd, unsigned long *v, int nbits);\r
+\r
+\r
+/* Temporary compatibility layer. Will get removed. */\r
+typedef struct asn_bit_outp_s asn_per_outp_t;\r
+#define per_put_few_bits(out, bits, obits) asn_put_few_bits(out, bits, obits)\r
+#define per_put_many_bits(out, src, nbits) asn_put_many_bits(out, src, nbits)\r
+#define per_put_aligned_flush(out) asn_put_aligned_flush(out)\r
+\r
+\r
+/*\r
+ * Rebase the given value as an offset into the range specified by the\r
+ * lower bound (lb) and upper bound (ub).\r
+ * RETURN VALUES:\r
+ * -1: Conversion failed due to range problems.\r
+ * 0: Conversion was successful.\r
+ */\r
+int per_long_range_rebase(long v, long lb, long ub, unsigned long *output);\r
+/* The inverse operation: restores the value by the offset and its bounds. */\r
+int per_long_range_unrebase(unsigned long inp, long lb, long ub, long *outp);\r
+\r
+/* X.691-2008/11, #11.5 */\r
+int uper_put_constrained_whole_number_u(asn_per_outp_t *po, unsigned long v, int nbits);\r
+\r
+/*\r
+ * X.691 (08/2015) #11.9 "General rules for encoding a length determinant"\r
+ * Put the length "whole_length" to the Unaligned PER stream.\r
+ * If (opt_need_eom) is given, it will be set to 1 if final 0-length is needed.\r
+ * In that case, invoke uper_put_length(po, 0, 0) after encoding the last block.\r
+ * This function returns the number of units which may be flushed\r
+ * in the next units saving iteration.\r
+ */\r
+ssize_t uper_put_length(asn_per_outp_t *po, size_t whole_length,\r
+ int *opt_need_eom);\r
+\r
+ssize_t aper_put_length(asn_per_outp_t *po, int range, size_t length);\r
+\r
+/* Align the current bit position to octet bundary */\r
+int aper_put_align(asn_per_outp_t *po);\r
+int32_t aper_get_align(asn_per_data_t *pd);\r
+\r
+/*\r
+ * Put the normally small length "n" to the Unaligned PER stream.\r
+ * Returns 0 or -1.\r
+ */\r
+int uper_put_nslength(asn_per_outp_t *po, size_t length);\r
+\r
+int aper_put_nslength(asn_per_outp_t *po, size_t length);\r
+\r
+/*\r
+ * Put the normally small non-negative whole number.\r
+ */\r
+int uper_put_nsnnwn(asn_per_outp_t *po, int n);\r
+\r
+int aper_put_nsnnwn(asn_per_outp_t *po, int range, int number);\r
+\r
+#ifdef __cplusplus\r
+}\r
+#endif\r
+\r
+#endif /* _PER_SUPPORT_H_ */\r
Code Review / ric-app / kpimon.git / blobdiff