diff options
Diffstat (limited to 'lib/asn1/c_src/asn1_erl_nif.c')
| -rw-r--r-- | lib/asn1/c_src/asn1_erl_nif.c | 149 |
1 files changed, 75 insertions, 74 deletions
diff --git a/lib/asn1/c_src/asn1_erl_nif.c b/lib/asn1/c_src/asn1_erl_nif.c index b3dd312fed..4577689fc3 100644 --- a/lib/asn1/c_src/asn1_erl_nif.c +++ b/lib/asn1/c_src/asn1_erl_nif.c @@ -1,18 +1,19 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2002-2013. All Rights Reserved. + * Copyright Ericsson AB 2002-2016. All Rights Reserved. * - * The contents of this file are subject to the Erlang Public License, - * Version 1.1, (the "License"); you may not use this file except in - * compliance with the License. You should have received a copy of the - * Erlang Public License along with this software. If not, it can be - * retrieved online at http://www.erlang.org/. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at * - * Software distributed under the License is distributed on an "AS IS" - * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See - * the License for the specific language governing rights and limitations - * under the License. + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. * * %CopyrightEnd% * @@ -57,54 +58,54 @@ #define MASK(X,M) (X & M) /* PER COMPLETE */ -int per_complete(ErlNifBinary *, unsigned char *, int); +static int per_complete(ErlNifBinary *, unsigned char *, int); -int per_insert_octets(int, unsigned char **, unsigned char **, int *); +static int per_insert_octets(int, unsigned char **, unsigned char **, int *); -int per_insert_octets_except_unused(int, unsigned char **, unsigned char **, +static int per_insert_octets_except_unused(int, unsigned char **, unsigned char **, int *, int); -int per_insert_octets_as_bits_exact_len(int, int, unsigned char **, +static int per_insert_octets_as_bits_exact_len(int, int, unsigned char **, unsigned char **, int *); -int per_insert_octets_as_bits(int, unsigned char **, unsigned char **, int *); +static int per_insert_octets_as_bits(int, unsigned char **, unsigned char **, int *); -int per_pad_bits(int, unsigned char **, int *); +static int per_pad_bits(int, unsigned char **, int *); -int per_insert_least_sign_bits(int, unsigned char, unsigned char **, int *); +static int per_insert_least_sign_bits(int, unsigned char, unsigned char **, int *); -int per_insert_most_sign_bits(int, unsigned char, unsigned char **, int *); +static int per_insert_most_sign_bits(int, unsigned char, unsigned char **, int *); -int per_insert_bits_as_bits(int, int, unsigned char **, unsigned char **, int *); +static int per_insert_bits_as_bits(int, int, unsigned char **, unsigned char **, int *); -int per_insert_octets_unaligned(int, unsigned char **, unsigned char **, int); +static int per_insert_octets_unaligned(int, unsigned char **, unsigned char **, int); -int per_realloc_memory(ErlNifBinary *, int, unsigned char **); +static int per_realloc_memory(ErlNifBinary *, int, unsigned char **); /* BER DECODE */ -int ber_decode_begin(ErlNifEnv *, ERL_NIF_TERM *, unsigned char *, int, +static int ber_decode_begin(ErlNifEnv *, ERL_NIF_TERM *, unsigned char *, int, unsigned int *); -int ber_decode(ErlNifEnv *, ERL_NIF_TERM *, unsigned char *, int *, int); +static int ber_decode(ErlNifEnv *, ERL_NIF_TERM *, unsigned char *, int *, int); -int ber_decode_tag(ErlNifEnv *, ERL_NIF_TERM *, unsigned char *, int, int *); +static int ber_decode_tag(ErlNifEnv *, ERL_NIF_TERM *, unsigned char *, int, int *); -int ber_decode_value(ErlNifEnv*, ERL_NIF_TERM *, unsigned char *, int *, int, +static int ber_decode_value(ErlNifEnv*, ERL_NIF_TERM *, unsigned char *, int *, int, int); /* BER ENCODE */ typedef struct ber_encode_mem_chunk mem_chunk_t; -int ber_encode(ErlNifEnv *, ERL_NIF_TERM , mem_chunk_t **, unsigned int *); +static int ber_encode(ErlNifEnv *, ERL_NIF_TERM , mem_chunk_t **, unsigned int *); -void ber_free_chunks(mem_chunk_t *chunk); -mem_chunk_t *ber_new_chunk(unsigned int length); -int ber_check_memory(mem_chunk_t **curr, unsigned int needed); +static void ber_free_chunks(mem_chunk_t *chunk); +static mem_chunk_t *ber_new_chunk(unsigned int length); +static int ber_check_memory(mem_chunk_t **curr, unsigned int needed); -int ber_encode_tag(ErlNifEnv *, ERL_NIF_TERM , unsigned int , +static int ber_encode_tag(ErlNifEnv *, ERL_NIF_TERM , unsigned int , mem_chunk_t **, unsigned int *); -int ber_encode_length(size_t , mem_chunk_t **, unsigned int *); +static int ber_encode_length(size_t , mem_chunk_t **, unsigned int *); /* * @@ -113,7 +114,7 @@ int ber_encode_length(size_t , mem_chunk_t **, unsigned int *); * */ -int per_complete(ErlNifBinary *out_binary, unsigned char *in_buf, +static int per_complete(ErlNifBinary *out_binary, unsigned char *in_buf, int in_buf_len) { int counter = in_buf_len; /* counter keeps track of number of bytes left in the @@ -489,7 +490,7 @@ int per_complete(ErlNifBinary *out_binary, unsigned char *in_buf, } } -int per_realloc_memory(ErlNifBinary *binary, int amount, unsigned char **ptr) { +static int per_realloc_memory(ErlNifBinary *binary, int amount, unsigned char **ptr) { int i = *ptr - binary->data; @@ -502,7 +503,7 @@ int per_realloc_memory(ErlNifBinary *binary, int amount, unsigned char **ptr) { return ASN1_OK; } -int per_insert_most_sign_bits(int no_bits, unsigned char val, +static int per_insert_most_sign_bits(int no_bits, unsigned char val, unsigned char **output_ptr, int *unused) { unsigned char *ptr = *output_ptr; @@ -523,7 +524,7 @@ int per_insert_most_sign_bits(int no_bits, unsigned char val, return ASN1_OK; } -int per_insert_least_sign_bits(int no_bits, unsigned char val, +static int per_insert_least_sign_bits(int no_bits, unsigned char val, unsigned char **output_ptr, int *unused) { unsigned char *ptr = *output_ptr; int ret = 0; @@ -552,7 +553,7 @@ int per_insert_least_sign_bits(int no_bits, unsigned char val, /* per_pad_bits adds no_bits bits in the buffer that output_ptr points at. */ -int per_pad_bits(int no_bits, unsigned char **output_ptr, int *unused) { +static int per_pad_bits(int no_bits, unsigned char **output_ptr, int *unused) { unsigned char *ptr = *output_ptr; int ret = 0; @@ -575,7 +576,7 @@ int per_pad_bits(int no_bits, unsigned char **output_ptr, int *unused) { The unused parameter tells how many bits that are not set in the actual byte in the output buffer. If desired_no is more bits than the input buffer has in no_bytes bytes, then zero bits is padded.*/ -int per_insert_bits_as_bits(int desired_no, int no_bytes, +static int per_insert_bits_as_bits(int desired_no, int no_bytes, unsigned char **input_ptr, unsigned char **output_ptr, int *unused) { unsigned char *in_ptr = *input_ptr; unsigned char val; @@ -615,7 +616,7 @@ int per_insert_bits_as_bits(int desired_no, int no_bytes, } /* per_insert_octets_as_bits_exact_len */ -int per_insert_octets_as_bits_exact_len(int desired_len, int in_buff_len, +static int per_insert_octets_as_bits_exact_len(int desired_len, int in_buff_len, unsigned char **in_ptr, unsigned char **ptr, int *unused) { int ret = 0; int ret2 = 0; @@ -653,7 +654,7 @@ int per_insert_octets_as_bits_exact_len(int desired_len, int in_buff_len, otherwise the function returns ASN1_ERROR. The output buffer is concatenated without alignment. */ -int per_insert_octets_as_bits(int no_bytes, unsigned char **input_ptr, +static int per_insert_octets_as_bits(int no_bytes, unsigned char **input_ptr, unsigned char **output_ptr, int *unused) { unsigned char *in_ptr = *input_ptr; unsigned char *ptr = *output_ptr; @@ -693,7 +694,7 @@ int per_insert_octets_as_bits(int no_bytes, unsigned char **input_ptr, into the output buffer, *output_ptr. Before the first byte is inserted the input buffer is aligned. */ -int per_insert_octets(int no_bytes, unsigned char **input_ptr, +static int per_insert_octets(int no_bytes, unsigned char **input_ptr, unsigned char **output_ptr, int *unused) { unsigned char *in_ptr = *input_ptr; unsigned char *ptr = *output_ptr; @@ -718,7 +719,7 @@ int per_insert_octets(int no_bytes, unsigned char **input_ptr, /* per_insert_octets_unaligned inserts bytes from the input buffer, *input_ptr, into the output buffer, *output_ptr.No alignment is done. */ -int per_insert_octets_unaligned(int no_bytes, unsigned char **input_ptr, +static int per_insert_octets_unaligned(int no_bytes, unsigned char **input_ptr, unsigned char **output_ptr, int unused) { unsigned char *in_ptr = *input_ptr; unsigned char *ptr = *output_ptr; @@ -742,7 +743,7 @@ int per_insert_octets_unaligned(int no_bytes, unsigned char **input_ptr, return no_bytes; } -int per_insert_octets_except_unused(int no_bytes, unsigned char **input_ptr, +static int per_insert_octets_except_unused(int no_bytes, unsigned char **input_ptr, unsigned char **output_ptr, int *unused, int in_unused) { unsigned char *in_ptr = *input_ptr; unsigned char *ptr = *output_ptr; @@ -835,7 +836,7 @@ int per_insert_octets_except_unused(int no_bytes, unsigned char **input_ptr, * is the empty binary. * If some error occured during the decoding of the in_buf an error is returned. */ -int ber_decode_begin(ErlNifEnv* env, ERL_NIF_TERM *term, unsigned char *in_buf, +static int ber_decode_begin(ErlNifEnv* env, ERL_NIF_TERM *term, unsigned char *in_buf, int in_buf_len, unsigned int *err_pos) { int maybe_ret; int ib_index = 0; @@ -857,7 +858,7 @@ int ber_decode_begin(ErlNifEnv* env, ERL_NIF_TERM *term, unsigned char *in_buf, return ASN1_OK; } -int ber_decode(ErlNifEnv* env, ERL_NIF_TERM *term, unsigned char *in_buf, +static int ber_decode(ErlNifEnv* env, ERL_NIF_TERM *term, unsigned char *in_buf, int *ib_index, int in_buf_len) { int maybe_ret; int form; @@ -889,7 +890,7 @@ int ber_decode(ErlNifEnv* env, ERL_NIF_TERM *term, unsigned char *in_buf, * decode_tag decodes the BER encoded tag in in_buf and creates an * nif term tag */ -int ber_decode_tag(ErlNifEnv* env, ERL_NIF_TERM *tag, unsigned char *in_buf, +static int ber_decode_tag(ErlNifEnv* env, ERL_NIF_TERM *tag, unsigned char *in_buf, int in_buf_len, int *ib_index) { int tag_no, tmp_tag, form; @@ -936,21 +937,36 @@ int ber_decode_tag(ErlNifEnv* env, ERL_NIF_TERM *tag, unsigned char *in_buf, * in_buf and puts the value part in the decode_buf as an Erlang * nif term into value */ -int ber_decode_value(ErlNifEnv* env, ERL_NIF_TERM *value, unsigned char *in_buf, +static int ber_decode_value(ErlNifEnv* env, ERL_NIF_TERM *value, unsigned char *in_buf, int *ib_index, int form, int in_buf_len) { int maybe_ret; unsigned int len = 0; unsigned int lenoflen = 0; - int indef = 0; unsigned char *tmp_out_buff; ERL_NIF_TERM term = 0, curr_head = 0; if (((in_buf[*ib_index]) & 0x80) == ASN1_SHORT_DEFINITE_LENGTH) { len = in_buf[*ib_index]; - } else if (in_buf[*ib_index] == ASN1_INDEFINITE_LENGTH - ) - indef = 1; - else /* long definite length */{ + } else if (in_buf[*ib_index] == ASN1_INDEFINITE_LENGTH) { + (*ib_index)++; + curr_head = enif_make_list(env, 0); + if (*ib_index+1 >= in_buf_len || form == ASN1_PRIMITIVE) { + return ASN1_INDEF_LEN_ERROR; + } + while (!(in_buf[*ib_index] == 0 && in_buf[*ib_index + 1] == 0)) { + maybe_ret = ber_decode(env, &term, in_buf, ib_index, in_buf_len); + if (maybe_ret <= ASN1_ERROR) { + return maybe_ret; + } + curr_head = enif_make_list_cell(env, term, curr_head); + if (*ib_index+1 >= in_buf_len) { + return ASN1_INDEF_LEN_ERROR; + } + } + enif_make_reverse_list(env, curr_head, value); + (*ib_index) += 2; /* skip the indefinite length end bytes */ + return ASN1_OK; + } else /* long definite length */{ lenoflen = (in_buf[*ib_index] & 0x7f); /*length of length */ if (lenoflen > (in_buf_len - (*ib_index + 1))) return ASN1_LEN_ERROR; @@ -965,23 +981,7 @@ int ber_decode_value(ErlNifEnv* env, ERL_NIF_TERM *value, unsigned char *in_buf, if (len > (in_buf_len - (*ib_index + 1))) return ASN1_VALUE_ERROR; (*ib_index)++; - if (indef == 1) { /* in this case it is desireably to check that indefinite length - end bytes exist in inbuffer */ - curr_head = enif_make_list(env, 0); - while (!(in_buf[*ib_index] == 0 && in_buf[*ib_index + 1] == 0)) { - if (*ib_index >= in_buf_len) - return ASN1_INDEF_LEN_ERROR; - - if ((maybe_ret = ber_decode(env, &term, in_buf, ib_index, in_buf_len)) - <= ASN1_ERROR - ) - return maybe_ret; - curr_head = enif_make_list_cell(env, term, curr_head); - } - enif_make_reverse_list(env, curr_head, value); - (*ib_index) += 2; /* skip the indefinite length end bytes */ - } else if (form == ASN1_CONSTRUCTED) - { + if (form == ASN1_CONSTRUCTED) { int end_index = *ib_index + len; if (end_index > in_buf_len) return ASN1_LEN_ERROR; @@ -1012,7 +1012,7 @@ struct ber_encode_mem_chunk { char *curr; }; -int ber_encode(ErlNifEnv *env, ERL_NIF_TERM term, mem_chunk_t **curr, unsigned int *count) { +static int ber_encode(ErlNifEnv *env, ERL_NIF_TERM term, mem_chunk_t **curr, unsigned int *count) { const ERL_NIF_TERM *tv; unsigned int form; @@ -1087,7 +1087,7 @@ int ber_encode(ErlNifEnv *env, ERL_NIF_TERM term, mem_chunk_t **curr, unsigned i return ASN1_OK; } -int ber_encode_tag(ErlNifEnv *env, ERL_NIF_TERM tag, unsigned int form, +static int ber_encode_tag(ErlNifEnv *env, ERL_NIF_TERM tag, unsigned int form, mem_chunk_t **curr, unsigned int *count) { unsigned int class_tag_no, head_tag; if (!enif_get_uint(env, tag, &class_tag_no)) @@ -1122,7 +1122,7 @@ int ber_encode_tag(ErlNifEnv *env, ERL_NIF_TERM tag, unsigned int form, } } -int ber_encode_length(size_t size, mem_chunk_t **curr, unsigned int *count) { +static int ber_encode_length(size_t size, mem_chunk_t **curr, unsigned int *count) { if (size < 128) { if (ber_check_memory(curr, 1u)) return ASN1_ERROR; @@ -1150,7 +1150,7 @@ int ber_encode_length(size_t size, mem_chunk_t **curr, unsigned int *count) { return ASN1_OK; } -mem_chunk_t *ber_new_chunk(unsigned int length) { +static mem_chunk_t *ber_new_chunk(unsigned int length) { mem_chunk_t *new = enif_alloc(sizeof(mem_chunk_t)); if (new == NULL) return NULL; @@ -1165,7 +1165,7 @@ mem_chunk_t *ber_new_chunk(unsigned int length) { return new; } -void ber_free_chunks(mem_chunk_t *chunk) { +static void ber_free_chunks(mem_chunk_t *chunk) { mem_chunk_t *curr, *next = chunk; while (next != NULL) { curr = next; @@ -1175,7 +1175,7 @@ void ber_free_chunks(mem_chunk_t *chunk) { } } -int ber_check_memory(mem_chunk_t **curr, unsigned int needed) { +static int ber_check_memory(mem_chunk_t **curr, unsigned int needed) { mem_chunk_t *new; if ((*curr)->curr-needed >= (*curr)->top) return ASN1_OK; @@ -1320,6 +1320,7 @@ static void unload(ErlNifEnv* env, void* priv_data) { } + static ErlNifFunc nif_funcs[] = { { "encode_per_complete", 1, encode_per_complete }, { "decode_ber_tlv_raw", 1, decode_ber_tlv_raw }, |