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https://github.com/samba-team/samba.git
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a093a76dc1
fix the messaging code to call the efficient calls :
save_re_uid()
set_effective_uid(0);
messaging_op
restore_re_uid();
instead of using heavyweight become_root()/unbecome_root()
pairs around all messaging code. Fixup the messaging
code to ensure sec_init() is called (only once) so that non-root
processes still work when sending messages.
This is a lighter weight solution to become_root()/unbecome_root()
(which swaps all the supplemental groups) and should be more
efficient. I will migrate all server code over to using this
(a similar technique should be used in the passdb backend
where needed).
Jeremy.
(This used to be commit 4ace291278)
61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
/*
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samba -- Unix SMB/CIFS implementation.
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Copyright (C) 2001, 2002 by Martin Pool
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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/**
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* @file tallocmsg.c
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*
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* Glue code between talloc profiling and the Samba messaging system.
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**/
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/**
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* Respond to a POOL_USAGE message by sending back string form of memory
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* usage stats.
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**/
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void msg_pool_usage(int msg_type, struct process_id src_pid,
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void *UNUSED(buf), size_t UNUSED(len))
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{
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char *reply = NULL;
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SMB_ASSERT(msg_type == MSG_REQ_POOL_USAGE);
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DEBUG(2,("Got POOL_USAGE\n"));
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reply = talloc_describe_all();
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if (!reply) {
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return;
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}
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message_send_pid(src_pid, MSG_POOL_USAGE,
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reply, strlen(reply)+1, True);
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SAFE_FREE(reply);
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}
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/**
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* Register handler for MSG_REQ_POOL_USAGE
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**/
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void register_msg_pool_usage(void)
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{
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message_register(MSG_REQ_POOL_USAGE, msg_pool_usage);
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DEBUG(2, ("Registered MSG_REQ_POOL_USAGE\n"));
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}
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