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Also check IPv6 mapped IPv4 addresses as IPv4

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If a client connects from an IPv4 address, but the listener listens on an
IPv6 address, the client IP will be a IPv6 mapped IPv4 address
e.g. ::ffff:127.0.0.1. A grant for an IPv4 address should still match an
IPv6 mapped IPv4 address.
This commit is contained in:
Markus Mäkelä 2017-04-04 14:46:33 +03:00
parent 9f14f3659f
commit 872f69b681
1 changed files with 14 additions and 0 deletions
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14
server/modules/authenticator/MySQLAuth/dbusers.c
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@ -202,6 +202,20 @@ int validate_mysql_user(sqlite3 *handle, DCB *dcb, MYSQL_session *session,
sqlite3_free(err);
}
/** Check for IPv6 mapped IPv4 address */
if (!res.ok && strchr(dcb->remote, ':') && strchr(dcb->remote, '.'))
{
const char *ipv4 = strrchr(dcb->remote, ':') + 1;
sprintf(sql, mysqlauth_validate_user_query, session->user, ipv4, ipv4,
session->db, session->db);
if (sqlite3_exec(handle, sql, auth_cb, &res, &err) != SQLITE_OK)
{
MXS_ERROR("Failed to execute auth query: %s", err);
sqlite3_free(err);
}
}
if (!res.ok)
{
/**