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Bug #15775 "drop user" command does not refresh acl_check_hosts

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- Update patch for 5.0 
 - Added common function to be called when 'acl_users' has been modified
This commit is contained in:
msvensson@neptunus.(none)
2005-12-28 14:43:50 +01:00
parent cdd1f5c6fc
commit e1ef24e38c
3 changed files with 41 additions and 22 deletions
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33
sql/sql_acl.cc
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@ -68,6 +68,7 @@ static ulong get_access(TABLE *form,uint fieldnr, uint *next_field=0);
static int acl_compare(ACL_ACCESS *a,ACL_ACCESS *b);
static ulong get_sort(uint count,...);
static void init_check_host(void);
static void rebuild_check_host(void);
static ACL_USER *find_acl_user(const char *host, const char *user,
my_bool exact);
static bool update_user_table(THD *thd, TABLE *table,
@ -1095,10 +1096,8 @@ static void acl_insert_user(const char *user, const char *host,
qsort((gptr) dynamic_element(&acl_users,0,ACL_USER*),acl_users.elements,
sizeof(ACL_USER),(qsort_cmp) acl_compare);
/* We must free acl_check_hosts as its memory is mapped to acl_user */
delete_dynamic(&acl_wild_hosts);
hash_free(&acl_check_hosts);
init_check_host();
/* Rebuild 'acl_check_hosts' since 'acl_users' has been modified */
rebuild_check_host();
}
@ -1283,7 +1282,7 @@ static void init_check_host(void)
if (j == acl_wild_hosts.elements) // If new
(void) push_dynamic(&acl_wild_hosts,(char*) &acl_user->host);
}
else if (!hash_search(&acl_check_hosts,(byte*) &acl_user->host,
else if (!hash_search(&acl_check_hosts,(byte*) acl_user->host.hostname,
(uint) strlen(acl_user->host.hostname)))
{
if (my_hash_insert(&acl_check_hosts,(byte*) acl_user))
@ -1300,6 +1299,22 @@ static void init_check_host(void)
}
/*
Rebuild lists used for checking of allowed hosts
We need to rebuild 'acl_check_hosts' and 'acl_wild_hosts' after adding,
dropping or renaming user, since they contain pointers to elements of
'acl_user' array, which are invalidated by drop operation, and use
ACL_USER::host::hostname as a key, which is changed by rename.
*/
void rebuild_check_host(void)
{
delete_dynamic(&acl_wild_hosts);
hash_free(&acl_check_hosts);
init_check_host();
}
/* Return true if there is no users that can match the given host */
bool acl_check_host(const char *host, const char *ip)
@ -5241,6 +5256,9 @@ bool mysql_drop_user(THD *thd, List <LEX_USER> &list)
}
}
/* Rebuild 'acl_check_hosts' since 'acl_users' has been modified */
rebuild_check_host();
VOID(pthread_mutex_unlock(&acl_cache->lock));
rw_unlock(&LOCK_grant);
close_thread_tables(thd);
@ -5265,7 +5283,7 @@ bool mysql_drop_user(THD *thd, List <LEX_USER> &list)
bool mysql_rename_user(THD *thd, List <LEX_USER> &list)
{
int result= 0;
int result;
String wrong_users;
LEX_USER *user_from;
LEX_USER *user_to;
@ -5297,6 +5315,9 @@ bool mysql_rename_user(THD *thd, List <LEX_USER> &list)
}
}
/* Rebuild 'acl_check_hosts' since 'acl_users' has been modified */
rebuild_check_host();
VOID(pthread_mutex_unlock(&acl_cache->lock));
rw_unlock(&LOCK_grant);
close_thread_tables(thd);