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Grant privilege on *.* to role@''; now updates in memory data structures;

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Revoke privilege on *.* to role@''; also works
This commit is contained in:
Vicențiu Ciorbaru
2013-10-18 04:47:55 -07:00
committed by Sergei Golubchik
parent 3d17d94cd6
commit 2060937353
1 changed files with 69 additions and 4 deletions
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73
sql/sql_acl.cc
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@ -1837,6 +1837,65 @@ static uchar* check_get_key(ACL_USER *buff, size_t *length,
return (uchar*) buff->host.hostname;
}
static void acl_update_role(const char *rolename,
ulong privileges)
{
ACL_ROLE *role;
ulong unused;
mysql_mutex_assert_owner(&acl_cache->lock);
role= find_acl_role(rolename);
if (!role)
{
return;
}
/*
Changing privileges of a role causes all other roles that had
this role granted to them to have their rights invalidated.
We need to rebuild all roles' related access bits.
*/
role->initial_role_access= privileges;
role->flags&= ~ROLE_GRANTS_FINAL;
role->access= role->initial_role_access;
get_role_access(role, &unused);
for (uint i= 0; i < role->parent_grantee.elements; i++)
{
ACL_USER_BASE *acl_user_base;
ACL_ROLE *grantee;
acl_user_base= *(dynamic_element(&role->parent_grantee, i, ACL_USER_BASE**));
if (acl_user_base->flags & IS_ROLE)
{
grantee= (ACL_ROLE *)acl_user_base;
grantee->flags&= ~ROLE_GRANTS_FINAL;
grantee->access= grantee->initial_role_access;
}
}
/*
This needs to be run again after resetting the ROLE_GRANTS_FINAL flag,
because otherwise diamond shaped grants will interfere with the reset
process.
Example: RoleA -> RoleB; RoleA -> RoleC; RoleB -> RoleC;
We are updating RoleC, and we reset RoleA first. If we were to run
get_role_access without resetting RoleB on RoleA, we would get the old
privileges from RoleC via RoleB into RoleA.
*/
for (uint i= 0; i < role->parent_grantee.elements; i++)
{
ACL_USER_BASE *acl_user_base;
ACL_ROLE *grantee;
acl_user_base= *(dynamic_element(&role->parent_grantee, i, ACL_USER_BASE**));
if (acl_user_base->flags & IS_ROLE)
{
grantee= (ACL_ROLE *)acl_user_base;
get_role_access(grantee, &unused);
}
}
}
static void acl_update_user(const char *user, const char *host,
const char *password, uint password_len,
@ -1851,6 +1910,12 @@ static void acl_update_user(const char *user, const char *host,
{
mysql_mutex_assert_owner(&acl_cache->lock);
if (host[0] == '\0' && find_acl_role(user))
{
acl_update_role(user, privileges);
return;
}
for (uint i=0 ; i < acl_users.elements ; i++)
{
ACL_USER *acl_user=dynamic_element(&acl_users,i,ACL_USER*);
@ -3180,10 +3245,10 @@ static int replace_user_table(THD *thd, TABLE *table, LEX_USER &combo,
if ((error=
table->file->ha_update_row(table->record[1],table->record[0])) &&
error != HA_ERR_RECORD_IS_THE_SAME)
{ // This should never happen
table->file->print_error(error,MYF(0)); /* purecov: deadcode */
error= -1; /* purecov: deadcode */
goto end; /* purecov: deadcode */
{ // This should never happen
table->file->print_error(error,MYF(0)); /* purecov: deadcode */
error= -1; /* purecov: deadcode */
goto end; /* purecov: deadcode */
}
else
error= 0;