This commit was manufactured by cvs2git to create branch 'OPENBSD_5_7'.libressl-v2.1.5

1 files changed, 0 insertions, 446 deletions

diff --git a/src/lib/libssl/bytestring.h b/src/lib/libssl/bytestring.h
deleted file mode 100644
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--- a/src/lib/libssl/bytestring.h
+++ /dev/null
@@ -1,446 +0,0 @@
-/*      $OpenBSD: bytestring.h,v 1.4 2015/02/07 06:10:32 doug Exp $     */
-/*
- * Copyright (c) 2014, Google Inc.
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
-
-#ifndef OPENSSL_HEADER_BYTESTRING_H
-#define OPENSSL_HEADER_BYTESTRING_H
-
-#if defined(__cplusplus)
-extern "C" {
-#endif
-
-#include <sys/types.h>
-#include <stdint.h>
-
-#include <openssl/opensslconf.h>
-
-/*
- * Bytestrings are used for parsing and building TLS and ASN.1 messages.
- *
- * A "CBS" (CRYPTO ByteString) represents a string of bytes in memory and
- * provides utility functions for safely parsing length-prefixed structures
- * like TLS and ASN.1 from it.
- *
- * A "CBB" (CRYPTO ByteBuilder) is a memory buffer that grows as needed and
- * provides utility functions for building length-prefixed messages.
- */
-
-/* CRYPTO ByteString */
-typedef struct cbs_st {
-        const uint8_t *data;
-        size_t len;
-} CBS;
-
-/*
- * CBS_init sets |cbs| to point to |data|. It does not take ownership of
- * |data|.
- */
-void CBS_init(CBS *cbs, const uint8_t *data, size_t len);
-
-/*
- * CBS_skip advances |cbs| by |len| bytes. It returns one on success and zero
- * otherwise.
- */
-int CBS_skip(CBS *cbs, size_t len);
-
-/*
- * CBS_data returns a pointer to the contents of |cbs|.
- */
-const uint8_t *CBS_data(const CBS *cbs);
-
-/*
- * CBS_len returns the number of bytes remaining in |cbs|.
- */
-size_t CBS_len(const CBS *cbs);
-
-/*
- * CBS_stow copies the current contents of |cbs| into |*out_ptr| and
- * |*out_len|. If |*out_ptr| is not NULL, the contents are freed with
- * OPENSSL_free. It returns one on success and zero on allocation failure. On
- * success, |*out_ptr| should be freed with OPENSSL_free. If |cbs| is empty,
- * |*out_ptr| will be NULL.
- */
-int CBS_stow(const CBS *cbs, uint8_t **out_ptr, size_t *out_len);
-
-/*
- * CBS_strdup copies the current contents of |cbs| into |*out_ptr| as a
- * NUL-terminated C string. If |*out_ptr| is not NULL, the contents are freed
- * with OPENSSL_free. It returns one on success and zero on allocation
- * failure. On success, |*out_ptr| should be freed with OPENSSL_free.
- *
- * NOTE: If |cbs| contains NUL bytes, the string will be truncated. Call
- * |CBS_contains_zero_byte(cbs)| to check for NUL bytes.
- */
-int CBS_strdup(const CBS *cbs, char **out_ptr);
-
-/*
- * CBS_contains_zero_byte returns one if the current contents of |cbs| contains
- * a NUL byte and zero otherwise.
- */
-int CBS_contains_zero_byte(const CBS *cbs);
-
-/*
- * CBS_mem_equal compares the current contents of |cbs| with the |len| bytes
- * starting at |data|. If they're equal, it returns one, otherwise zero. If the
- * lengths match, it uses a constant-time comparison.
- */
-int CBS_mem_equal(const CBS *cbs, const uint8_t *data, size_t len);
-
-/*
- * CBS_get_u8 sets |*out| to the next uint8_t from |cbs| and advances |cbs|. It
- * returns one on success and zero on error.
- */
-int CBS_get_u8(CBS *cbs, uint8_t *out);
-
-/*
- * CBS_get_u16 sets |*out| to the next, big-endian uint16_t from |cbs| and
- * advances |cbs|. It returns one on success and zero on error.
- */
-int CBS_get_u16(CBS *cbs, uint16_t *out);
-
-/*
- * CBS_get_u24 sets |*out| to the next, big-endian 24-bit value from |cbs| and
- * advances |cbs|. It returns one on success and zero on error.
- */
-int CBS_get_u24(CBS *cbs, uint32_t *out);
-
-/*
- * CBS_get_u32 sets |*out| to the next, big-endian uint32_t value from |cbs|
- * and advances |cbs|. It returns one on success and zero on error.
- */
-int CBS_get_u32(CBS *cbs, uint32_t *out);
-
-/*
- * CBS_get_bytes sets |*out| to the next |len| bytes from |cbs| and advances
- * |cbs|. It returns one on success and zero on error.
- */
-int CBS_get_bytes(CBS *cbs, CBS *out, size_t len);
-
-/*
- * CBS_get_u8_length_prefixed sets |*out| to the contents of an 8-bit,
- * length-prefixed value from |cbs| and advances |cbs| over it. It returns one
- * on success and zero on error.
- */
-int CBS_get_u8_length_prefixed(CBS *cbs, CBS *out);
-
-/*
- * CBS_get_u16_length_prefixed sets |*out| to the contents of a 16-bit,
- * big-endian, length-prefixed value from |cbs| and advances |cbs| over it. It
- * returns one on success and zero on error.
- */
-int CBS_get_u16_length_prefixed(CBS *cbs, CBS *out);
-
-/*
- * CBS_get_u24_length_prefixed sets |*out| to the contents of a 24-bit,
- * big-endian, length-prefixed value from |cbs| and advances |cbs| over it. It
- * returns one on success and zero on error.
- */
-int CBS_get_u24_length_prefixed(CBS *cbs, CBS *out);
-
-
-/* Parsing ASN.1 */
-
-#define CBS_ASN1_BOOLEAN 0x1
-#define CBS_ASN1_INTEGER 0x2
-#define CBS_ASN1_BITSTRING 0x3
-#define CBS_ASN1_OCTETSTRING 0x4
-#define CBS_ASN1_OBJECT 0x6
-#define CBS_ASN1_ENUMERATED 0xa
-#define CBS_ASN1_SEQUENCE (0x10 | CBS_ASN1_CONSTRUCTED)
-#define CBS_ASN1_SET (0x11 | CBS_ASN1_CONSTRUCTED)
-
-#define CBS_ASN1_CONSTRUCTED 0x20
-#define CBS_ASN1_CONTEXT_SPECIFIC 0x80
-
-/*
- * CBS_get_asn1 sets |*out| to the contents of DER-encoded, ASN.1 element (not
- * including tag and length bytes) and advances |cbs| over it. The ASN.1
- * element must match |tag_value|. It returns one on success and zero
- * on error.
- *
- * Tag numbers greater than 30 are not supported (i.e. short form only).
- */
-int CBS_get_asn1(CBS *cbs, CBS *out, unsigned tag_value);
-
-/*
- * CBS_get_asn1_element acts like |CBS_get_asn1| but |out| will include the
- * ASN.1 header bytes too.
- */
-int CBS_get_asn1_element(CBS *cbs, CBS *out, unsigned tag_value);
-
-/*
- * CBS_peek_asn1_tag looks ahead at the next ASN.1 tag and returns one
- * if the next ASN.1 element on |cbs| would have tag |tag_value|. If
- * |cbs| is empty or the tag does not match, it returns zero. Note: if
- * it returns one, CBS_get_asn1 may still fail if the rest of the
- * element is malformed.
- */
-int CBS_peek_asn1_tag(const CBS *cbs, unsigned tag_value);
-
-/*
- * CBS_get_any_asn1_element sets |*out| to contain the next ASN.1 element from
- * |*cbs| (including header bytes) and advances |*cbs|. It sets |*out_tag| to
- * the tag number and |*out_header_len| to the length of the ASN.1 header. If
- * the element has indefinite length then |*out| will only contain the
- * header. Each of |out|, |out_tag|, and |out_header_len| may be NULL to ignore
- * the value.
- *
- * Tag numbers greater than 30 are not supported (i.e. short form only).
- */
-int CBS_get_any_asn1_element(CBS *cbs, CBS *out, unsigned *out_tag,
-    size_t *out_header_len);
-
-/*
- * CBS_get_asn1_uint64 gets an ASN.1 INTEGER from |cbs| using |CBS_get_asn1|
- * and sets |*out| to its value. It returns one on success and zero on error,
- * where error includes the integer being negative, or too large to represent
- * in 64 bits.
- */
-int CBS_get_asn1_uint64(CBS *cbs, uint64_t *out);
-
-/*
- * CBS_get_optional_asn1 gets an optional explicitly-tagged element
- * from |cbs| tagged with |tag| and sets |*out| to its contents. If
- * present, it sets |*out_present| to one, otherwise zero. It returns
- * one on success, whether or not the element was present, and zero on
- * decode failure.
- */
-int CBS_get_optional_asn1(CBS *cbs, CBS *out, int *out_present, unsigned tag);
-
-/*
- * CBS_get_optional_asn1_octet_string gets an optional
- * explicitly-tagged OCTET STRING from |cbs|. If present, it sets
- * |*out| to the string and |*out_present| to one. Otherwise, it sets
- * |*out| to empty and |*out_present| to zero. |out_present| may be
- * NULL. It returns one on success, whether or not the element was
- * present, and zero on decode failure.
- */
-int CBS_get_optional_asn1_octet_string(CBS *cbs, CBS *out, int *out_present,
-    unsigned tag);
-
-/*
- * CBS_get_optional_asn1_uint64 gets an optional explicitly-tagged
- * INTEGER from |cbs|. If present, it sets |*out| to the
- * value. Otherwise, it sets |*out| to |default_value|. It returns one
- * on success, whether or not the element was present, and zero on
- * decode failure.
- */
-int CBS_get_optional_asn1_uint64(CBS *cbs, uint64_t *out, unsigned tag,
-    uint64_t default_value);
-
-/*
- * CBS_get_optional_asn1_bool gets an optional, explicitly-tagged BOOLEAN from
- * |cbs|. If present, it sets |*out| to either zero or one, based on the
- * boolean. Otherwise, it sets |*out| to |default_value|. It returns one on
- * success, whether or not the element was present, and zero on decode
- * failure.
- */
-int CBS_get_optional_asn1_bool(CBS *cbs, int *out, unsigned tag,
-    int default_value);
-
-
-/*
- * CRYPTO ByteBuilder.
- *
- * |CBB| objects allow one to build length-prefixed serialisations. A |CBB|
- * object is associated with a buffer and new buffers are created with
- * |CBB_init|. Several |CBB| objects can point at the same buffer when a
- * length-prefix is pending, however only a single |CBB| can be 'current' at
- * any one time. For example, if one calls |CBB_add_u8_length_prefixed| then
- * the new |CBB| points at the same buffer as the original. But if the original
- * |CBB| is used then the length prefix is written out and the new |CBB| must
- * not be used again.
- *
- * If one needs to force a length prefix to be written out because a |CBB| is
- * going out of scope, use |CBB_flush|.
- */
-
-struct cbb_buffer_st {
-        uint8_t *buf;
-
-        /* The number of valid bytes. */
-        size_t len;
-
-        /* The size of buf. */
-        size_t cap;
-
-        /*
-         * One iff |buf| is owned by this object. If not then |buf| cannot be
-         * resized.
-         */
-        char can_resize;
-};
-
-typedef struct cbb_st {
-        struct cbb_buffer_st *base;
-
-        /*
-         * offset is the offset from the start of |base->buf| to the position of any
-         * pending length-prefix.
-         */
-        size_t offset;
-
-        /* child points to a child CBB if a length-prefix is pending. */
-        struct cbb_st *child;
-
-        /*
-         * pending_len_len contains the number of bytes in a pending length-prefix,
-         * or zero if no length-prefix is pending.
-         */
-        uint8_t pending_len_len;
-
-        char pending_is_asn1;
-
-        /*
-         * is_top_level is true iff this is a top-level |CBB| (as opposed to a child
-         * |CBB|). Top-level objects are valid arguments for |CBB_finish|.
-         */
-        char is_top_level;
-} CBB;
-
-/*
- * CBB_init initialises |cbb| with |initial_capacity|. Since a |CBB| grows as
- * needed, the |initial_capacity| is just a hint. It returns one on success or
- * zero on error.
- */
-int CBB_init(CBB *cbb, size_t initial_capacity);
-
-/*
- * CBB_init_fixed initialises |cbb| to write to |len| bytes at |buf|. Since
- * |buf| cannot grow, trying to write more than |len| bytes will cause CBB
- * functions to fail. It returns one on success or zero on error.
- */
-int CBB_init_fixed(CBB *cbb, uint8_t *buf, size_t len);
-
-/*
- * CBB_cleanup frees all resources owned by |cbb| and other |CBB| objects
- * writing to the same buffer. This should be used in an error case where a
- * serialisation is abandoned.
- */
-void CBB_cleanup(CBB *cbb);
-
-/*
- * CBB_finish completes any pending length prefix and sets |*out_data| to a
- * malloced buffer and |*out_len| to the length of that buffer. The caller
- * takes ownership of the buffer and, unless the buffer was fixed with
- * |CBB_init_fixed|, must call |OPENSSL_free| when done.
- *
- * It can only be called on a "top level" |CBB|, i.e. one initialised with
- * |CBB_init| or |CBB_init_fixed|. It returns one on success and zero on
- * error.
- */
-int CBB_finish(CBB *cbb, uint8_t **out_data, size_t *out_len);
-
-/*
- * CBB_flush causes any pending length prefixes to be written out and any child
- * |CBB| objects of |cbb| to be invalidated. It returns one on success or zero
- * on error.
- */
-int CBB_flush(CBB *cbb);
-
-/*
- * CBB_add_u8_length_prefixed sets |*out_contents| to a new child of |cbb|. The
- * data written to |*out_contents| will be prefixed in |cbb| with an 8-bit
- * length. It returns one on success or zero on error.
- */
-int CBB_add_u8_length_prefixed(CBB *cbb, CBB *out_contents);
-
-/*
- * CBB_add_u16_length_prefixed sets |*out_contents| to a new child of |cbb|.
- * The data written to |*out_contents| will be prefixed in |cbb| with a 16-bit,
- * big-endian length. It returns one on success or zero on error.
- */
-int CBB_add_u16_length_prefixed(CBB *cbb, CBB *out_contents);
-
-/*
- * CBB_add_u24_length_prefixed sets |*out_contents| to a new child of |cbb|.
- * The data written to |*out_contents| will be prefixed in |cbb| with a 24-bit,
- * big-endian length. It returns one on success or zero on error.
- */
-int CBB_add_u24_length_prefixed(CBB *cbb, CBB *out_contents);
-
-/*
- * CBB_add_asn sets |*out_contents| to a |CBB| into which the contents of an
- * ASN.1 object can be written. The |tag| argument will be used as the tag for
- * the object. Passing in |tag| number 31 will return in an error since only
- * single octet identifiers are supported. It returns one on success or zero
- * on error.
- */
-int CBB_add_asn1(CBB *cbb, CBB *out_contents, uint8_t tag);
-
-/*
- * CBB_add_bytes appends |len| bytes from |data| to |cbb|. It returns one on
- * success and zero otherwise.
- */
-int CBB_add_bytes(CBB *cbb, const uint8_t *data, size_t len);
-
-/*
- * CBB_add_space appends |len| bytes to |cbb| and sets |*out_data| to point to
- * the beginning of that space. The caller must then write |len| bytes of
- * actual contents to |*out_data|. It returns one on success and zero
- * otherwise.
- */
-int CBB_add_space(CBB *cbb, uint8_t **out_data, size_t len);
-
-/*
- * CBB_add_u8 appends an 8-bit number from |value| to |cbb|. It returns one on
- * success and zero otherwise.
- */
-int CBB_add_u8(CBB *cbb, uint8_t value);
-
-/*
- * CBB_add_u8 appends a 16-bit, big-endian number from |value| to |cbb|. It
- * returns one on success and zero otherwise.
- */
-int CBB_add_u16(CBB *cbb, uint16_t value);
-
-/*
- * CBB_add_u24 appends a 24-bit, big-endian number from |value| to |cbb|. It
- * returns one on success and zero otherwise.
- */
-int CBB_add_u24(CBB *cbb, uint32_t value);
-
-/*
- * CBB_add_asn1_uint64 writes an ASN.1 INTEGER into |cbb| using |CBB_add_asn1|
- * and writes |value| in its contents. It returns one on success and zero on
- * error.
- */
-int CBB_add_asn1_uint64(CBB *cbb, uint64_t value);
-
-#ifdef LIBRESSL_INTERNAL
-/*
- * CBS_asn1_ber_to_der reads an ASN.1 structure from |in|. If it finds
- * indefinite-length elements then it attempts to convert the BER data to DER
- * and sets |*out| and |*out_length| to describe a malloced buffer containing
- * the DER data. Additionally, |*in| will be advanced over the ASN.1 data.
- *
- * If it doesn't find any indefinite-length elements then it sets |*out| to
- * NULL and |*in| is unmodified.
- *
- * A sufficiently complex ASN.1 structure will break this function because it's
- * not possible to generically convert BER to DER without knowledge of the
- * structure itself. However, this sufficies to handle the PKCS#7 and #12 output
- * from NSS.
- *
- * It returns one on success and zero otherwise.
- */
-int CBS_asn1_ber_to_der(CBS *in, uint8_t **out, size_t *out_len);
-#endif /* LIBRESSL_INTERNAL */
-
-#if defined(__cplusplus)
-}  /* extern C */
-#endif
-
-#endif  /* OPENSSL_HEADER_BYTESTRING_H */