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Code Activity

New error messages

Browse Source 
Test of unsigned BIGINT values
Fixes for queries-per-hour
Cleanup of replication code (comments and portability fixes)
Make most of the binary log code 4G clean
Changed syntax for GRANT ... QUERIES PER HOUR


Docs/manual.texi:
  Fixed Changelog, upgrading to 4.0 and 4.1 TODO sections.
Docs/mysqld_error.txt:
  Added error message.
configure.in:
  Fix for autoconf 2.52
include/my_getopt.h:
  Portability fix.
include/my_global.h:
  Portablity fix.
include/mysqld_error.h:
  New error messages
mysql-test/r/bigint.result:
  Test of unsigned BIGINT values.
mysql-test/r/func_op.result:
  Test of unsigned BIGINT values.
mysql-test/r/varbinary.result:
  Test of unsigned BIGINT values.
mysql-test/t/bigint.test:
  Test of unsigned BIGINT values.
sql/item_func.h:
  Optimized Item_int_func() usage.
sql/lock.cc:
  Cleanup comments
sql/log.cc:
  Cleanup
sql/log_event.cc:
  Cleanup and portability fixes.
sql/log_event.h:
  Cleanup and portability fixes.
sql/mini_client.cc:
  Cleanup and portability fixes.
sql/mysqld.cc:
  Fix for queries-per-hour
sql/repl_failsafe.cc:
  Prepare for making binary log 2G clean.
sql/share/czech/errmsg.txt:
  New error messages
sql/share/danish/errmsg.txt:
  New error messages
sql/share/dutch/errmsg.txt:
  New error messages
sql/share/english/errmsg.txt:
  New error messages
sql/share/estonian/errmsg.txt:
  New error messages
sql/share/french/errmsg.txt:
  New error messages
sql/share/german/errmsg.txt:
  New error messages
sql/share/greek/errmsg.txt:
  New error messages
sql/share/hungarian/errmsg.txt:
  New error messages
sql/share/italian/errmsg.txt:
  New error messages
sql/share/japanese/errmsg.txt:
  New error messages
sql/share/korean/errmsg.txt:
  New error messages
sql/share/norwegian-ny/errmsg.txt:
  New error messages
sql/share/norwegian/errmsg.txt:
  New error messages
sql/share/polish/errmsg.txt:
  New error messages
sql/share/portuguese/errmsg.txt:
  New error messages
sql/share/romanian/errmsg.txt:
  New error messages
sql/share/russian/errmsg.txt:
  New error messages
sql/share/slovak/errmsg.txt:
  New error messages
sql/share/spanish/errmsg.txt:
  New error messages
sql/share/swedish/errmsg.txt:
  New error messages
sql/share/ukrainian/errmsg.txt:
  New error messages
sql/slave.cc:
  Cleanup
sql/slave.h:
  Cleanup
sql/sql_acl.cc:
  Cleanup and removal of possible reserved words
sql/sql_base.cc:
  More DBUG
sql/sql_cache.cc:
  Cleanup & portability fixes
sql/sql_class.h:
  Make binary log 4G clean
sql/sql_delete.cc:
  More DBUG
sql/sql_handler.cc:
  Cleanup & portability fixes
sql/sql_parse.cc:
  Cleanup of queries-per-hours code
sql/sql_rename.cc:
  Add missing DBUG_RETURN
sql/sql_repl.cc:
  Cleanup & portability fixes
sql/sql_select.cc:
  Cleanup & portability fixes
sql/sql_show.cc:
  Cleanup & portability fixes
sql/sql_update.cc:
  Small cleanup of multi-update-code (need second pass)
sql/sql_yacc.yy:
  Changed syntax for GRANT ... QUERIES PER HOUR
strings/str2int.c:
  Cleanup & portability fixes
This commit is contained in:
unknown
2002-01-29 18:32:16 +02:00
parent 741b75b1c7
commit d6a4362687
57 changed files with 1112 additions and 722 deletions
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215
sql/sql_parse.cc
View File

@ -1,4 +1,4 @@
/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
/* Copyright (C) 2000 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@ -55,7 +55,9 @@ extern "C" pthread_mutex_t THR_LOCK_keycache;
extern "C" int gethostname(char *name, int namelen);
#endif
static int check_for_max_user_connections(const char *user, const char *host, uint max);
static int check_for_max_user_connections(const char *user, const char *host, uint max_questions);
static bool check_mqh(THD *thd, const char *user, const char *host,
uint max_questions);
static void decrease_user_connections(const char *user, const char *host);
static bool check_db_used(THD *thd,TABLE_LIST *tables);
static bool check_merge_table_access(THD *thd, char *db, TABLE_LIST *tables);
@ -121,101 +123,22 @@ extern pthread_mutex_t LOCK_user_conn;
struct user_conn {
char *user;
uint len, connections, questions, max;
uint len, connections, questions, max_questions;
time_t intime;
};
static byte* get_key_conn(user_conn *buff, uint *length,
my_bool not_used __attribute__((unused)))
{
*length=buff->len;
return (byte*) buff->user;
}
#define DEF_USER_COUNT 50
static void free_user(struct user_conn *uc)
{
my_free((char*) uc,MYF(0));
}
/*
** Check if maximum queries per hour limit has been reached
** returns 0 if OK.
*/
static bool check_mqh(THD *thd, const char *user, const char *host,uint max)
{
uint temp_len;
char temp_user[USERNAME_LENGTH+HOSTNAME_LENGTH+2];
struct user_conn *uc;
if (!user)
user="";
if (!host)
host="";
temp_len= (uint) (strxnmov(temp_user, sizeof(temp_user), user, "@", host,
NullS) - temp_user);
//This would be MUCH faster if there was already temp_user made in THD !!! May I ??
(void) pthread_mutex_lock(&LOCK_user_conn);
uc = (struct user_conn *) hash_search(&hash_user_connections,
(byte*) temp_user, temp_len);
if (uc) /* user found ; check for no. of queries */
{
bool my_start = thd->start_time != 0;
time_t check_time = (my_start) ? thd->start_time : time(NULL);
if (check_time - uc->intime >= 3600)
{
uc->questions=(uint)my_start;
uc->intime=check_time;
}
else if (uc->max && ++(uc->questions) > uc->max)
{
(void) pthread_mutex_unlock(&LOCK_user_conn);
send_error(&thd->net,ER_NOT_ALLOWED_COMMAND); // change this to appropriate message
return 1;
}
}
else
{
struct user_conn *uc= ((struct user_conn*)
my_malloc(sizeof(struct user_conn) + temp_len+1,
MYF(MY_WME)));
if (!uc)
{
send_error(&current_thd->net, 0, NullS); // Out of memory
(void) pthread_mutex_unlock(&LOCK_user_conn);
return 1;
}
uc->user=(char*) (uc+1);
memcpy(uc->user,temp_user,temp_len+1);
uc->len = temp_len;
uc->connections = 1;
uc->questions=0;
uc->max=max;
uc->intime=current_thd->thr_create_time;
if (hash_insert(&hash_user_connections, (byte*) uc))
{
my_free((char*) uc,0);
send_error(&current_thd->net, 0, NullS); // Out of memory
(void) pthread_mutex_unlock(&LOCK_user_conn);
return 1;
}
}
(void) pthread_mutex_unlock(&LOCK_user_conn);
return 0;
}
/*
** Check if user is ok
** Updates:
** thd->user, thd->master_access, thd->priv_user, thd->db, thd->db_access
Check if user is ok
Updates:
thd->user, thd->master_access, thd->priv_user, thd->db, thd->db_access
*/
static bool check_user(THD *thd,enum_server_command command, const char *user,
const char *passwd, const char *db, bool check_count)
{
NET *net= &thd->net;
uint max=0;
uint max_questions=0;
thd->db=0;
thd->db_length=0;
@ -228,7 +151,7 @@ static bool check_user(THD *thd,enum_server_command command, const char *user,
passwd, thd->scramble, &thd->priv_user,
protocol_version == 9 ||
!(thd->client_capabilities &
CLIENT_LONG_PASSWORD),&max);
CLIENT_LONG_PASSWORD),&max_questions);
DBUG_PRINT("info",
("Capabilities: %d packet_length: %d Host: '%s' User: '%s' Using password: %s Access: %u db: '%s'",
thd->client_capabilities, thd->max_packet_length,
@ -259,8 +182,6 @@ static bool check_user(THD *thd,enum_server_command command, const char *user,
return(1);
}
}
if (mqh_used && max && check_mqh(thd,user,thd->host,max))
return -1;
mysql_log.write(thd,command,
(thd->priv_user == thd->user ?
(char*) "%s@%s on %s" :
@ -269,8 +190,11 @@ static bool check_user(THD *thd,enum_server_command command, const char *user,
thd->host_or_ip,
db ? db : (char*) "");
thd->db_access=0;
/* Don't allow user to connect if he has done too many queries */
if (max_questions && check_mqh(thd,user,thd->host_or_ip,max_questions))
return -1;
if (max_user_connections &&
check_for_max_user_connections(user, thd->host, max))
check_for_max_user_connections(user, thd->host, max_questions))
return -1;
if (db && db[0])
{
@ -285,30 +209,40 @@ static bool check_user(THD *thd,enum_server_command command, const char *user,
}
/*
** check for maximum allowable user connections
** if mysql server is started with corresponding
** variable that is greater then 0
Check for maximum allowable user connections, if the mysqld server is
started with corresponding variable that is greater then 0.
*/
static byte* get_key_conn(user_conn *buff, uint *length,
my_bool not_used __attribute__((unused)))
{
*length=buff->len;
return (byte*) buff->user;
}
static void free_user(struct user_conn *uc)
{
my_free((char*) uc,MYF(0));
}
void init_max_user_conn(void)
{
(void) hash_init(&hash_user_connections,DEF_USER_COUNT,0,0,
(void) hash_init(&hash_user_connections,max_connections,0,0,
(hash_get_key) get_key_conn, (void (*)(void*)) free_user,
0);
}
static int check_for_max_user_connections(const char *user, const char *host, uint max)
static int check_for_max_user_connections(const char *user, const char *host,
uint max_questions)
{
int error=1;
uint temp_len;
char temp_user[USERNAME_LENGTH+HOSTNAME_LENGTH+2];
struct user_conn *uc;
if (!user)
user="";
if (!host)
host="";
DBUG_ENTER("check_for_max_user_connections");
DBUG_ASSERT(user != 0);
DBUG_ASSERT(host != 0);
DBUG_PRINT("enter",("user: '%s' host: '%s'", user, host));
temp_len= (uint) (strxnmov(temp_user, sizeof(temp_user), user, "@", host,
@ -341,7 +275,7 @@ static int check_for_max_user_connections(const char *user, const char *host, ui
uc->len = temp_len;
uc->connections = 1;
uc->questions=0;
uc->max=max;
uc->max_questions=max_questions;
uc->intime=current_thd->thr_create_time;
if (hash_insert(&hash_user_connections, (byte*) uc))
{
@ -397,9 +331,82 @@ void free_max_user_conn(void)
hash_free(&hash_user_connections);
}
/*
** check connnetion and get priviliges
** returns 0 on ok, -1 < if error is given > 0 on error.
Check if maximum queries per hour limit has been reached
returns 0 if OK.
*/
static bool check_mqh(THD *thd, const char *user, const char *host,
uint max_questions)
{
uint temp_len;
char temp_user[USERNAME_LENGTH+HOSTNAME_LENGTH+2];
struct user_conn *uc;
bool error=0;
DBUG_ASSERT(user != 0);
DBUG_ASSERT(host != 0);
/* TODO: Add username + host to THD for faster execution */
temp_len= (uint) (strxnmov(temp_user, sizeof(temp_user)-1, user, "@", host,
NullS) - temp_user);
(void) pthread_mutex_lock(&LOCK_user_conn);
uc = (struct user_conn *) hash_search(&hash_user_connections,
(byte*) temp_user, temp_len);
if (uc)
{
/* user found ; check for no. of queries */
bool my_start = thd->start_time != 0;
time_t check_time = (my_start) ? thd->start_time : time(NULL);
if (check_time - uc->intime >= 3600)
{
uc->questions=(uint) my_start;
uc->intime=check_time;
}
else if (uc->max_questions && ++(uc->questions) > uc->max_questions)
{
net_printf(&thd->net, ER_USER_LIMIT_REACHED, temp_user, "max_questions",
(long) uc->questions);
error=1;
goto end;
}
}
else
{
struct user_conn *uc= ((struct user_conn*)
my_malloc(sizeof(struct user_conn) + temp_len+1,
MYF(MY_WME)));
if (!uc)
{
send_error(&current_thd->net, 0, NullS); // Out of memory
error=1;
goto end;
}
uc->user=(char*) (uc+1);
memcpy(uc->user,temp_user,temp_len+1);
uc->len = temp_len;
uc->connections = 1;
uc->questions=0;
uc->max_questions=max_questions;
uc->intime=current_thd->thr_create_time;
if (hash_insert(&hash_user_connections, (byte*) uc))
{
my_free((char*) uc,0);
send_error(&current_thd->net, 0, NullS); // Out of memory
error=1;
}
}
end:
(void) pthread_mutex_unlock(&LOCK_user_conn);
return error;
}
/*
Check connnetion and get priviliges
Returns 0 on ok, -1 < if error is given > 0 on error.
*/
@ -408,9 +415,7 @@ check_connections(THD *thd)
{
uint connect_errors=0;
NET *net= &thd->net;
/*
** store the connection details
*/
/* Store the connection details */
DBUG_PRINT("info", (("check_connections called by thread %d"),
thd->thread_id));
DBUG_PRINT("info",("New connection received on %s",