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ASN.1: Add helper functions for debug printing identifier/length info

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These can be helpful in cleaning up implementation of more or less
identical debug printing operations.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2021-03-13 23:02:44 +02:00
parent 429f725d9b
commit f629bfe225
2 changed files with 16 additions and 0 deletions
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14
src/tls/asn1.c
View file

@ -207,6 +207,20 @@ int asn1_get_next(const u8 *buf, size_t len, struct asn1_hdr *hdr)
}
void asn1_print_hdr(const struct asn1_hdr *hdr, const char *title)
{
wpa_printf(MSG_DEBUG, "%sclass %d constructed %d tag 0x%x",
title, hdr->class, hdr->constructed, hdr->tag);
}
void asn1_unexpected(const struct asn1_hdr *hdr, const char *title)
{
wpa_printf(MSG_DEBUG, "%s - found class %d constructed %d tag 0x%x",
title, hdr->class, hdr->constructed, hdr->tag);
}
int asn1_parse_oid(const u8 *buf, size_t len, struct asn1_oid *oid)
{
const u8 *pos, *end;

2
src/tls/asn1.h
View file

@ -60,6 +60,8 @@ struct asn1_oid {
int asn1_get_next(const u8 *buf, size_t len, struct asn1_hdr *hdr);
void asn1_print_hdr(const struct asn1_hdr *hdr, const char *title);
void asn1_unexpected(const struct asn1_hdr *hdr, const char *title);
int asn1_parse_oid(const u8 *buf, size_t len, struct asn1_oid *oid);
int asn1_get_oid(const u8 *buf, size_t len, struct asn1_oid *oid,
const u8 **next);