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Use BIO_{get,set}_app_data instead of BIO_{get,set}_data.

Browse Source 
We should have done it this way all along, but we accidentally got
away with using the wrong BIO field up until OpenSSL 3.2.  There,
the library's BIO routines that we rely on use the "data" field
for their own purposes, and our conflicting use causes assorted
weird behaviors up to and including core dumps when SSL connections
are attempted.  Switch to using the approved field for the purpose,
i.e. app_data.

While at it, remove our configure probes for BIO_get_data as well
as the fallback implementation.  BIO_{get,set}_app_data have been
there since long before any OpenSSL version that we still support,
even in the back branches.

Also, update src/test/ssl/t/001_ssltests.pl to allow for a minor
change in an error message spelling that evidently came in with 3.2.

Tristan Partin and Bo Andreson.  Back-patch to all supported branches.

Discussion: https://postgr.es/m/CAN55FZ1eDDYsYaL7mv+oSLUij2h_u6hvD4Qmv-7PK7jkji0uyQ@mail.gmail.com
This commit is contained in:
Tom Lane
2023-11-28 12:34:03 -05:00
parent 9fee3232a1
commit efa8f60640
8 changed files with 11 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
src/backend/libpq/be-secure-openssl.c
View File

@@ -844,11 +844,6 @@ be_tls_write(Port *port, void *ptr, size_t len, int *waitfor)
* to retry; do we need to adopt their logic for that?
*/
#ifndef HAVE_BIO_GET_DATA
#define BIO_get_data(bio) (bio->ptr)
#define BIO_set_data(bio, data) (bio->ptr = data)
#endif
static BIO_METHOD *my_bio_methods = NULL;
static int
@@ -858,7 +853,7 @@ my_sock_read(BIO *h, char *buf, int size)
if (buf != NULL)
{
res = secure_raw_read(((Port *) BIO_get_data(h)), buf, size);
res = secure_raw_read(((Port *) BIO_get_app_data(h)), buf, size);
BIO_clear_retry_flags(h);
if (res <= 0)
{
@@ -878,7 +873,7 @@ my_sock_write(BIO *h, const char *buf, int size)
{
int res = 0;
res = secure_raw_write(((Port *) BIO_get_data(h)), buf, size);
res = secure_raw_write(((Port *) BIO_get_app_data(h)), buf, size);
BIO_clear_retry_flags(h);
if (res <= 0)
{
@@ -954,7 +949,7 @@ my_SSL_set_fd(Port *port, int fd)
SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
goto err;
}
BIO_set_data(bio, port);
BIO_set_app_data(bio, port);
BIO_set_fd(bio, fd, BIO_NOCLOSE);
SSL_set_bio(port->ssl, bio, bio);

3
src/include/pg_config.h.in
View File

@@ -70,9 +70,6 @@
/* Define to 1 if you have the `backtrace_symbols' function. */
#undef HAVE_BACKTRACE_SYMBOLS
/* Define to 1 if you have the `BIO_get_data' function. */
#undef HAVE_BIO_GET_DATA
/* Define to 1 if you have the `BIO_meth_new' function. */
#undef HAVE_BIO_METH_NEW

11
src/interfaces/libpq/fe-secure-openssl.c
View File

@@ -1830,11 +1830,6 @@ PQsslAttribute(PGconn *conn, const char *attribute_name)
* to retry; do we need to adopt their logic for that?
*/
#ifndef HAVE_BIO_GET_DATA
#define BIO_get_data(bio) (bio->ptr)
#define BIO_set_data(bio, data) (bio->ptr = data)
#endif
/* protected by ssl_config_mutex */
static BIO_METHOD *my_bio_methods;
@@ -1843,7 +1838,7 @@ my_sock_read(BIO *h, char *buf, int size)
{
int res;
res = pqsecure_raw_read((PGconn *) BIO_get_data(h), buf, size);
res = pqsecure_raw_read((PGconn *) BIO_get_app_data(h), buf, size);
BIO_clear_retry_flags(h);
if (res < 0)
{
@@ -1873,7 +1868,7 @@ my_sock_write(BIO *h, const char *buf, int size)
{
int res;
res = pqsecure_raw_write((PGconn *) BIO_get_data(h), buf, size);
res = pqsecure_raw_write((PGconn *) BIO_get_app_data(h), buf, size);
BIO_clear_retry_flags(h);
if (res < 0)
{
@@ -1992,7 +1987,7 @@ my_SSL_set_fd(PGconn *conn, int fd)
SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
goto err;
}
BIO_set_data(bio, conn);
BIO_set_app_data(bio, conn);
SSL_set_bio(conn->ssl, bio, bio);
BIO_set_fd(bio, fd, BIO_NOCLOSE);

6
src/test/ssl/t/001_ssltests.pl
View File

@@ -781,7 +781,7 @@ $node->connect_fails(
"$common_connstr user=ssltestuser sslcert=ssl/client-revoked.crt "
. sslkey('client-revoked.key'),
"certificate authorization fails with revoked client cert",
expected_stderr => qr/SSL error: sslv3 alert certificate revoked/,
expected_stderr => qr|SSL error: ssl[a-z0-9/]* alert certificate revoked|,
# temporarily(?) skip this check due to timing issue
# log_like => [
# qr{Client certificate verification failed at depth 0: certificate revoked},
@@ -886,7 +886,7 @@ $node->connect_fails(
"$common_connstr user=ssltestuser sslcert=ssl/client-revoked.crt "
. sslkey('client-revoked.key'),
"certificate authorization fails with revoked client cert with server-side CRL directory",
expected_stderr => qr/SSL error: sslv3 alert certificate revoked/,
expected_stderr => qr|SSL error: ssl[a-z0-9/]* alert certificate revoked|,
# temporarily(?) skip this check due to timing issue
# log_like => [
# qr{Client certificate verification failed at depth 0: certificate revoked},
@@ -899,7 +899,7 @@ $node->connect_fails(
"$common_connstr user=ssltestuser sslcert=ssl/client-revoked-utf8.crt "
. sslkey('client-revoked-utf8.key'),
"certificate authorization fails with revoked UTF-8 client cert with server-side CRL directory",
expected_stderr => qr/SSL error: sslv3 alert certificate revoked/,
expected_stderr => qr|SSL error: ssl[a-z0-9/]* alert certificate revoked|,
# temporarily(?) skip this check due to timing issue
# log_like => [
# qr{Client certificate verification failed at depth 0: certificate revoked},

2
src/tools/msvc/Solution.pm
View File

@@ -225,7 +225,6 @@ sub GenerateFiles
HAVE_ATOMICS => 1,
HAVE_ATOMIC_H => undef,
HAVE_BACKTRACE_SYMBOLS => undef,
HAVE_BIO_GET_DATA => undef,
HAVE_BIO_METH_NEW => undef,
HAVE_COMPUTED_GOTO => undef,
HAVE_COPYFILE => undef,
@@ -503,7 +502,6 @@ sub GenerateFiles
|| ($digit1 >= '1' && $digit2 >= '1' && $digit3 >= '0'))
{
$define{HAVE_ASN1_STRING_GET0_DATA} = 1;
$define{HAVE_BIO_GET_DATA} = 1;
$define{HAVE_BIO_METH_NEW} = 1;
$define{HAVE_HMAC_CTX_FREE} = 1;
$define{HAVE_HMAC_CTX_NEW} = 1;