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MXS-3069: Fix plugin name comparison

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Connectors that wouldn't send the plugin name even when the plugin
authentication capability was enabled would have to do an extra step in
the authentication.
This commit is contained in:
Markus Mäkelä 2020-07-07 08:40:30 +03:00
parent 6c9249131f
commit 32fa7b6800
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GPG Key ID: 5CE746D557ACC499
1 changed files with 5 additions and 2 deletions
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7
server/modules/authenticator/MariaDBAuth/mysql_auth.cc
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@ -645,8 +645,11 @@ static bool mysql_auth_set_client_data(MYSQL_session* client_data,
else
{
// Check that the plugin is as expected. If not, make a note so the
// authentication function switches the plugin.
bool correct_auth = strcmp(plugin_name, DEFAULT_MYSQL_AUTH_PLUGIN) == 0;
// authentication function switches the plugin. An empty auth plugin
// name should be interpreted as the connector using the same plugin
// we sent in the initial handshake.
bool correct_auth = strcmp(plugin_name, DEFAULT_MYSQL_AUTH_PLUGIN) == 0
|| *plugin_name == '\0';
client_data->correct_authenticator = correct_auth;
if (!correct_auth)
{