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path: root/src/lib/libssl/bs_cbs.c (follow)
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* sync inclusion of <stdlib.h> from libcryptotb2024-05-251-1/+2
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* Provide various CBS_peek_* functions.jsing2021-12-151-1/+78
| | | | | | These will be used in libcrypto. With input from and ok tb@
* Provide CBS_get_u64().jsing2021-12-151-1/+18
| | | | | | This will be used in the libcrypto certificate transparency code. ok tb@
* Provide CBS_get_last_u8().jsing2021-12-151-1/+12
| | | | | | | | This will be used in the TLSv1.3 record layer. From BoringSSL. ok tb@
* Add explicit CBS_contains_zero_byte() check in CBS_strdup().jsing2021-10-311-1/+6
| | | | | | | | If the CBS data contains a zero byte, then CBS_strdup() is only going to return part of the data - add an explicit CBS_contains_zero_byte() and treat such data as an error case. ok tb@
* Fix formatting of multi-line license comment per style(9).jsing2021-05-161-2/+3
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* Remove unnecessary includes from the bytestring APIs.jsing2021-05-161-5/+1
| | | | | The bytestring APIs are self contained, hence including openssl headers here is unnecessary.
* assert.h is often misused. It should not be used in a librarybeck2019-01-231-5/+2
| | | | ok bcook@ jsing@
* Stop using BUF_memdup() within the LibreSSL code base - it is correctlyjsing2015-06-241-3/+4
| | | | | | spelt malloc+memcpy, which is what is used in all except two places. ok deraadt@ doug@
* Change CBS_dup() to also sync the offset.doug2015-06-231-1/+2
| | | | | | | Previously, CBS_dup() had its own offset. However, it is more consistent to copy everything. ok miod@ jsing@
* Replace internal call to CRYPTO_memcmp with timingsafe_memcmp.doug2015-06-201-2/+2
| | | | | | Suggested by jsing@. ok jsing@ miod@
* Add CBS_dup() to initialize a new CBS with the same values.doug2015-06-191-1/+7
| | | | | | | This is useful for when you need to check the data ahead and then continue on from the same spot. input + ok jsing@ miod@
* Use explicit int in bs_cbs.c.doug2015-06-171-12/+13
| | | | ok miod@ jsing@
* Add CBS_write_bytes() to copy the remaining CBS bytes to the caller.doug2015-06-171-1/+15
| | | | | | This is a common operation when dealing with CBS. ok miod@ jsing@
* Add a new function CBS_offset() to report the current offset in the data.doug2015-06-171-1/+8
| | | | "why not" miod@, sure jsing@
* Simplify cbs_get_any_asn1_element_internal based on comments from jsing@doug2015-06-161-15/+11
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* Make CBS_get_any_asn1_element() more compliant with DER encoding.doug2015-06-151-17/+51
| | | | | | | | | | | | | | | | | CBS_get_any_asn1_element violates DER encoding by allowing indefinite form. All callers except bs_ber.c expect DER encoding. The callers must check to see if it was indefinite or not. Rather than exposing all callers to this behavior, cbs_get_any_asn1_element_internal() allows specifying whether you want to allow the normally forbidden indefinite form. This is used by CBS_get_any_asn1_element() for strict DER encoding and by a new static function in bs_ber.c for the relaxed version. While I was here, I added comments to differentiate between ASN.1 restrictions and CBS limitations. ok miod@
* Reject long-form tags in CBS_peek_asn1_tag.doug2015-06-131-1/+8
| | | | | | Currently, CBS only handles short-form tags. ok miod@ jsing@
* Add whitespace and replace OPENSSL_free with free in documentation.doug2015-04-291-3/+3
| | | | ok jsing@
* Avoid NULL deref in CBS_get_any_asn1_element().doug2015-04-291-2/+3
| | | | | | This function is documented as allowing NULL for out_header_len. ok jsing@
* Added error checking for len argument in cbs_get_u().doug2015-04-291-1/+4
| | | | tweak + ok jsing@
* free() can handle NULL.doug2015-04-291-8/+4
| | | | ok jsing@
* Check for invalid leading zeros in CBS_get_asn1_uint64.doug2015-04-251-3/+8
| | | | | | | | | | ASN.1 integers cannot have all zeros or all ones for the first 9 bits. This rule ensures the numbers are encoded with the smallest number of content octets (see ITU-T Rec X.690 section 8.3.2). Based on BoringSSL commit 5933723b7b592e9914f703d630b596e140c93e16 ok deraadt@ jsing@
* KNF bytestring files.doug2015-02-061-307/+356
| | | | | | | | I checked that this doesn't change anything. Compiled with clang using -Wno-pointer-sign -g0 to reduce the differences. Only difference in the asm is due to assert(0) line number changes in bs_cbs.c and bs_cbb.c. miod is ok with the general process.
* Import BoringSSL's crypto bytestring and crypto bytebuilder APIs.doug2015-02-061-0/+390
This is imported with as few changes as possible for the initial commit. I removed OPENSSL_EXPORT, replaced OPENSSL_malloc() etc with malloc() and changed a few header includes. BoringSSL has this as part of their public API. We're leaving it internal to libssl for now. Based on BoringSSL's CBB/CBS API as of commit c5cc15b4f5b1d6e9b9112cb8d30205a638aa2c54. input + ok jsing@, miod@
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