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MXS-1762: Compare client IP when choosing a connection

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When the connection pool is inspected, both the client username and IP
must match. This causes the pool to be partitioned by username and IP,
prevening unintentional sharing of connections between different users.
This commit is contained in:
Markus Mäkelä
2018-04-08 20:34:41 +03:00
parent d07d9d59df
commit cddf132d23
3 changed files with 19 additions and 7 deletions
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16
server/core/server.c
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@ -205,12 +205,15 @@ server_free(SERVER *tofreeserver)
/**
* Get a DCB from the persistent connection pool, if possible
*
* @param server The server to set the name on
* @param user The name of the user needing the connection
* @param protocol The name of the protocol needed for the connection
* @param server The server to set the name on
* @param user The name of the user needing the connection
* @param ip Client IP address
* @param protocol The name of the protocol needed for the connection
* @param id Thread ID
*
* @return A DCB or NULL if no connection is found
*/
DCB *
server_get_persistent(SERVER *server, const char *user, const char *protocol, int id)
DCB* server_get_persistent(SERVER *server, const char *user, const char* ip, const char *protocol, int id)
{
DCB *dcb, *previous = NULL;
@ -224,9 +227,12 @@ server_get_persistent(SERVER *server, const char *user, const char *protocol, in
{
if (dcb->user
&& dcb->protoname
&& dcb->remote
&& ip
&& !dcb-> dcb_errhandle_called
&& !(dcb->flags & DCBF_HUNG)
&& 0 == strcmp(dcb->user, user)
&& 0 == strcmp(dcb->remote, ip)
&& 0 == strcmp(dcb->protoname, protocol))
{
if (NULL == previous)