hcq/MaxScale
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge branch '2.2' into develop

Browse Source
This commit is contained in:
Markus Mäkelä
2018-04-30 12:38:19 +03:00
parent 2f8bb71a58 1e700ab9ba
commit 490d8c0963
10 changed files with 93 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
server/core/config_runtime.cc
View File

@ -448,6 +448,7 @@ bool runtime_alter_monitor(MXS_MONITOR *monitor, const char *key, const char *va
{
spinlock_acquire(&crt_lock);
bool valid = false;
const MXS_MODULE *mod = get_module(monitor->module_name, MODULE_MONITOR);
if (strcmp(key, CN_USER) == 0)
{
@ -522,7 +523,7 @@ bool runtime_alter_monitor(MXS_MONITOR *monitor, const char *key, const char *va
monitorSetScriptTimeout(monitor, ival);
}
}
else
else if (config_param_is_valid(mod->parameters, key, value, NULL))
{
/** We're modifying module specific parameters and we need to stop the monitor */
monitorStop(monitor);

9
server/core/dcb.cc
View File

@ -3458,13 +3458,14 @@ int poll_add_dcb(DCB *dcb)
worker_id = MXS_WORKER_ALL;
}
else if (dcb->dcb_role == DCB_ROLE_CLIENT_HANDLER &&
strcasecmp(dcb->service->routerModule, "cli") == 0)
(strcasecmp(dcb->service->routerModule, "cli") == 0 ||
strcasecmp(dcb->service->routerModule, "maxinfo") == 0))
{
// If the DCB refers to an accepted maxadmin socket, we force it
// If the DCB refers to an accepted maxadmin/maxinfo socket, we force it
// to the main thread. That's done in order to prevent a deadlock
// that may happen if there are multiple concurrent maxadmin calls,
// that may happen if there are multiple concurrent administrative calls,
// handled by different worker threads.
// See: https://jira.mariadb.org/browse/MXS-1805
// See: https://jira.mariadb.org/browse/MXS-1805 and https://jira.mariadb.org/browse/MXS-1833
new_state = DCB_STATE_POLLING;
dcb->poll.thread.id = 0;
worker_id = dcb->poll.thread.id;

67
server/modules/protocol/MySQL/mariadbbackend/mysql_backend.c
View File

@ -708,6 +708,37 @@ static inline bool not_err_packet(const GWBUF* buffer)
return GWBUF_DATA(buffer)[4] != MYSQL_REPLY_ERR;
}
static inline bool auth_change_requested(GWBUF* buf)
{
return mxs_mysql_get_command(buf) == MYSQL_REPLY_AUTHSWITCHREQUEST &&
gwbuf_length(buf) > MYSQL_EOF_PACKET_LEN;
}
static bool handle_auth_change_response(GWBUF* reply, MySQLProtocol* proto, DCB* dcb)
{
bool rval = false;
if (strcmp((char*)GWBUF_DATA(reply) + 5, DEFAULT_MYSQL_AUTH_PLUGIN) == 0)
{
/**
* The server requested a change of authentication methods.
* If we're changing the authentication method to the same one we
* are using now, it means that the server is simply generating
* a new scramble for the re-authentication process.
*/
// Load the new scramble into the protocol...
gwbuf_copy_data(reply, 5 + strlen(DEFAULT_MYSQL_AUTH_PLUGIN) + 1,
GW_MYSQL_SCRAMBLE_SIZE, proto->scramble);
/// ... and use it to send the encrypted password to the server
rval = send_mysql_native_password_response(dcb);
}
return rval;
}
/**
* @brief With authentication completed, read new data and write to backend
*
@ -829,6 +860,19 @@ gw_read_and_write(DCB *dcb)
}
}
if (proto->changing_user)
{
if (auth_change_requested(read_buffer) &&
handle_auth_change_response(read_buffer, proto, dcb))
{
return 0;
}
else
{
proto->changing_user = false;
}
}
if (proto->ignore_replies > 0)
{
/** The reply to a COM_CHANGE_USER is in packet */
@ -855,28 +899,16 @@ gw_read_and_write(DCB *dcb)
MXS_INFO("Response to COM_CHANGE_USER is OK, writing stored query");
rval = query ? dcb->func.write(dcb, query) : 1;
}
else if (result == MYSQL_REPLY_AUTHSWITCHREQUEST &&
gwbuf_length(reply) > MYSQL_EOF_PACKET_LEN)
else if (auth_change_requested(reply))
{
/**
* The server requested a change of authentication methods.
* If we're changing the authentication method to the same one we
* are using now, it means that the server is simply generating
* a new scramble for the re-authentication process.
*/
if (strcmp((char*)GWBUF_DATA(reply) + 5, DEFAULT_MYSQL_AUTH_PLUGIN) == 0)
if (handle_auth_change_response(reply, proto, dcb))
{
/** Load the new scramble into the protocol... */
gwbuf_copy_data(reply, 5 + strlen(DEFAULT_MYSQL_AUTH_PLUGIN) + 1,
GW_MYSQL_SCRAMBLE_SIZE, proto->scramble);
/** ... and use it to send the encrypted password to the server */
rval = send_mysql_native_password_response(dcb);
/** Store the query until we know the result of the authentication
* method switch. */
proto->stored_query = query;
proto->ignore_replies++;
gwbuf_free(reply);
return rval;
}
else
@ -889,7 +921,6 @@ gw_read_and_write(DCB *dcb)
// TODO: Use the authenticators to handle COM_CHANGE_USER responses
MXS_ERROR("Received AuthSwitchRequest to '%s' when '%s' was expected",
(char*)GWBUF_DATA(reply) + 5, DEFAULT_MYSQL_AUTH_PLUGIN);
}
}
else
@ -1993,8 +2024,10 @@ gw_send_change_user_to_backend(char *dbname,
if (rc != 0)
{
conn->changing_user = true;
rc = 1;
}
return rc;
}

1
server/modules/protocol/MySQL/mysql_common.cc
View File

@ -71,6 +71,7 @@ MySQLProtocol* mysql_protocol_init(DCB* dcb, int fd)
p->extra_capabilities = 0;
p->ignore_replies = 0;
p->collect_result = false;
p->changing_user = false;
p->num_eof_packets = 0;
#if defined(SS_DEBUG)
p->protocol_chk_top = CHK_NUM_PROTOCOL;