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Diffstat (limited to 'source4/smbd/conn.c')
| -rw-r--r-- | source4/smbd/conn.c | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/source4/smbd/conn.c b/source4/smbd/conn.c deleted file mode 100644 index 0498b3cb5d..0000000000 --- a/source4/smbd/conn.c +++ /dev/null @@ -1,158 +0,0 @@ -/* - Unix SMB/CIFS implementation. - Manage connections_struct structures - Copyright (C) Andrew Tridgell 1998 - Copyright (C) Alexander Bokovoy 2002 - - 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 - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#include "includes.h" - -/* set these to define the limits of the server. NOTE These are on a - per-client basis. Thus any one machine can't connect to more than - MAX_CONNECTIONS services, but any number of machines may connect at - one time. */ -#define MAX_CONNECTIONS 128 - -/**************************************************************************** -init the conn structures -****************************************************************************/ -void conn_init(struct server_context *smb) -{ - smb->tree.bmap = bitmap_allocate(MAX_CONNECTIONS); -} - -/**************************************************************************** -check if a snum is in use -****************************************************************************/ -BOOL conn_snum_used(struct server_context *smb, int snum) -{ - struct tcon_context *conn; - for (conn=smb->tree.connections;conn;conn=conn->next) { - if (conn->service == snum) { - return(True); - } - } - return(False); -} - - -/**************************************************************************** -find a conn given a cnum -****************************************************************************/ -struct tcon_context *conn_find(struct server_context *smb, unsigned cnum) -{ - int count=0; - struct tcon_context *conn; - - for (conn=smb->tree.connections;conn;conn=conn->next,count++) { - if (conn->cnum == cnum) { - if (count > 10) { - DLIST_PROMOTE(smb->tree.connections, conn); - } - return conn; - } - } - - return NULL; -} - - -/**************************************************************************** - find first available connection slot, starting from a random position. -The randomisation stops problems with the server dieing and clients -thinking the server is still available. -****************************************************************************/ -struct tcon_context *conn_new(struct server_context *smb) -{ - TALLOC_CTX *mem_ctx; - struct tcon_context *conn; - int i; - - i = bitmap_find(smb->tree.bmap, 1); - - if (i == -1) { - DEBUG(1,("ERROR! Out of connection structures\n")); - return NULL; - } - - mem_ctx = talloc_init("tcon_context[%d]", i); - - conn = (struct tcon_context *)talloc(mem_ctx, sizeof(*conn)); - if (!conn) return NULL; - - ZERO_STRUCTP(conn); - - conn->mem_ctx = mem_ctx; - conn->cnum = i; - conn->smb = smb; - - bitmap_set(smb->tree.bmap, i); - - smb->tree.num_open++; - - DLIST_ADD(smb->tree.connections, conn); - - return conn; -} - -/**************************************************************************** -close all conn structures -****************************************************************************/ -void conn_close_all(struct server_context *smb) -{ - struct tcon_context *conn, *next; - for (conn=smb->tree.connections;conn;conn=next) { - next=conn->next; - close_cnum(conn); - } -} - - -#if REWRITE_REMOVED -/**************************************************************************** -clear a vuid out of the validity cache, and as the 'owner' of a connection. -****************************************************************************/ -void conn_clear_vuid_cache(struct server_context *smb, uint16 vuid) -{ - struct tcon_context *conn; - unsigned int i; - - for (conn=smb->tree.connections;conn;conn=conn->next) { - for (i=0;i<conn->vuid_cache.entries && i< VUID_CACHE_SIZE;i++) { - if (conn->vuid_cache.list[i] == vuid) { - conn->vuid_cache.list[i] = UID_FIELD_INVALID; - } - } - } -} -#endif - -/**************************************************************************** - Free a conn structure. -****************************************************************************/ - -void conn_free(struct server_context *smb, struct tcon_context *conn) -{ - DLIST_REMOVE(smb->tree.connections, conn); - - bitmap_clear(smb->tree.bmap, conn->cnum); - smb->tree.num_open--; - - ZERO_STRUCTP(conn); - SAFE_FREE(conn); -} - |