[openssl-commits] [openssl] OpenSSL_1_1_0-stable update

[Rich Salz]

The branch OpenSSL_1_1_0-stable has been updated
       via  19c708d77d6b61fbd46c13d43f2b078eae5362f9 (commit)
      from  32859f608c2fe876c418e94e3883ab04083cac75 (commit)


- Log -----------------------------------------------------------------
commit 19c708d77d6b61fbd46c13d43f2b078eae5362f9
Author: Patrick Schlangen <patrick at schlangen.me>
Date:   Wed Jan 10 12:06:35 2018 -0500

    Make data argument const in SSL_dane_tlsa_add
    
    The data argument of SSL_dane_tlsa_add is used read-only, so it
    should be const.
    
    Reviewed-by: Viktor Dukhovni <viktor at openssl.org>
    Reviewed-by: Rich Salz <rsalz at openssl.org>
    (Merged from https://github.com/openssl/openssl/pull/5056)
    
    (cherry picked from commit a41a6120cdcb7e883481bc1bed55e7157c9255c4)

-----------------------------------------------------------------------

Summary of changes:
 doc/ssl/SSL_CTX_dane_enable.pod | 2 ++
 include/openssl/ssl.h           | 2 +-
 ssl/ssl_lib.c                   | 4 ++--
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/doc/ssl/SSL_CTX_dane_enable.pod b/doc/ssl/SSL_CTX_dane_enable.pod
index cb71d3a..288a12f 100644
--- a/doc/ssl/SSL_CTX_dane_enable.pod
+++ b/doc/ssl/SSL_CTX_dane_enable.pod
@@ -76,6 +76,8 @@ TLSA records that apply to the remote TLS peer.
 The arguments specify the fields of the TLSA record.
 The B<data> field is provided in binary (wire RDATA) form, not the hexadecimal
 ASCII presentation form, with an explicit length passed via B<dlen>.
+The library takes a copy of the B<data> buffer contents and the caller may
+free the original B<data> buffer when convenient.
 A return value of 0 indicates that "unusable" TLSA records (with invalid or
 unsupported parameters) were provided.
 A negative return value indicates an internal error in processing the record.
diff --git a/include/openssl/ssl.h b/include/openssl/ssl.h
index 4cdcdcf..0d08663 100644
--- a/include/openssl/ssl.h
+++ b/include/openssl/ssl.h
@@ -1529,7 +1529,7 @@ __owur int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md,
                                   uint8_t mtype, uint8_t ord);
 __owur int SSL_dane_enable(SSL *s, const char *basedomain);
 __owur int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
-                             uint8_t mtype, unsigned char *data, size_t dlen);
+                             uint8_t mtype, unsigned const char *data, size_t dlen);
 __owur int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki);
 __owur int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
                               uint8_t *mtype, unsigned const char **data,
diff --git a/ssl/ssl_lib.c b/ssl/ssl_lib.c
index 8dddee1..a7d4dd1 100644
--- a/ssl/ssl_lib.c
+++ b/ssl/ssl_lib.c
@@ -320,7 +320,7 @@ static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype)
 static int dane_tlsa_add(SSL_DANE *dane,
                          uint8_t usage,
                          uint8_t selector,
-                         uint8_t mtype, unsigned char *data, size_t dlen)
+                         uint8_t mtype, unsigned const char *data, size_t dlen)
 {
     danetls_record *t;
     const EVP_MD *md = NULL;
@@ -1076,7 +1076,7 @@ SSL_DANE *SSL_get0_dane(SSL *s)
 }
 
 int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
-                      uint8_t mtype, unsigned char *data, size_t dlen)
+                      uint8_t mtype, unsigned const char *data, size_t dlen)
 {
     return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen);
 }