477143e3fe
With the restructuring of the lksctp.org site, we only allow bug reports through the SCTP mailing list linux-sctp@vger.kernel.org, not via SF, as SF is only used for web hosting and nothing more. While at it, also remove the obvious statement that bugs will be fixed and incooperated into the kernel. Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
143 lines
4 KiB
C
143 lines
4 KiB
C
/* SCTP kernel implementation
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* (C) Copyright IBM Corp. 2001, 2004
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*
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* This file is part of the SCTP kernel implementation
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*
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* Support for memory object debugging. This allows one to monitor the
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* object allocations/deallocations for types instrumented for this
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* via the proc fs.
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*
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* This SCTP implementation is free software;
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* you can redistribute it and/or modify it under the terms of
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* the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This SCTP implementation is distributed in the hope that it
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* will be useful, but WITHOUT ANY WARRANTY; without even the implied
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* ************************
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU CC; see the file COPYING. If not, write to
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* the Free Software Foundation, 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Please send any bug reports or fixes you make to the
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* email address(es):
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* lksctp developers <linux-sctp@vger.kernel.org>
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*
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* Written or modified by:
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* Jon Grimm <jgrimm@us.ibm.com>
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/kernel.h>
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#include <net/sctp/sctp.h>
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/*
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* Global counters to count raw object allocation counts.
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* To add new counters, choose a unique suffix for the variable
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* name as the helper macros key off this suffix to make
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* life easier for the programmer.
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*/
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SCTP_DBG_OBJCNT(sock);
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SCTP_DBG_OBJCNT(ep);
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SCTP_DBG_OBJCNT(transport);
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SCTP_DBG_OBJCNT(assoc);
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SCTP_DBG_OBJCNT(bind_addr);
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SCTP_DBG_OBJCNT(bind_bucket);
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SCTP_DBG_OBJCNT(chunk);
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SCTP_DBG_OBJCNT(addr);
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SCTP_DBG_OBJCNT(ssnmap);
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SCTP_DBG_OBJCNT(datamsg);
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SCTP_DBG_OBJCNT(keys);
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/* An array to make it easy to pretty print the debug information
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* to the proc fs.
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*/
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static sctp_dbg_objcnt_entry_t sctp_dbg_objcnt[] = {
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SCTP_DBG_OBJCNT_ENTRY(sock),
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SCTP_DBG_OBJCNT_ENTRY(ep),
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SCTP_DBG_OBJCNT_ENTRY(assoc),
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SCTP_DBG_OBJCNT_ENTRY(transport),
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SCTP_DBG_OBJCNT_ENTRY(chunk),
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SCTP_DBG_OBJCNT_ENTRY(bind_addr),
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SCTP_DBG_OBJCNT_ENTRY(bind_bucket),
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SCTP_DBG_OBJCNT_ENTRY(addr),
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SCTP_DBG_OBJCNT_ENTRY(ssnmap),
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SCTP_DBG_OBJCNT_ENTRY(datamsg),
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SCTP_DBG_OBJCNT_ENTRY(keys),
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};
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/* Callback from procfs to read out objcount information.
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* Walk through the entries in the sctp_dbg_objcnt array, dumping
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* the raw object counts for each monitored type.
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*/
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static int sctp_objcnt_seq_show(struct seq_file *seq, void *v)
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{
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int i, len;
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i = (int)*(loff_t *)v;
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seq_printf(seq, "%s: %d%n", sctp_dbg_objcnt[i].label,
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atomic_read(sctp_dbg_objcnt[i].counter), &len);
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seq_printf(seq, "%*s\n", 127 - len, "");
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return 0;
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}
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static void *sctp_objcnt_seq_start(struct seq_file *seq, loff_t *pos)
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{
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return (*pos >= ARRAY_SIZE(sctp_dbg_objcnt)) ? NULL : (void *)pos;
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}
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static void sctp_objcnt_seq_stop(struct seq_file *seq, void *v)
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{
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}
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static void * sctp_objcnt_seq_next(struct seq_file *seq, void *v, loff_t *pos)
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{
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++*pos;
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return (*pos >= ARRAY_SIZE(sctp_dbg_objcnt)) ? NULL : (void *)pos;
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}
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static const struct seq_operations sctp_objcnt_seq_ops = {
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.start = sctp_objcnt_seq_start,
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.next = sctp_objcnt_seq_next,
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.stop = sctp_objcnt_seq_stop,
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.show = sctp_objcnt_seq_show,
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};
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static int sctp_objcnt_seq_open(struct inode *inode, struct file *file)
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{
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return seq_open(file, &sctp_objcnt_seq_ops);
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}
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static const struct file_operations sctp_objcnt_ops = {
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.open = sctp_objcnt_seq_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = seq_release,
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};
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/* Initialize the objcount in the proc filesystem. */
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void sctp_dbg_objcnt_init(struct net *net)
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{
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struct proc_dir_entry *ent;
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ent = proc_create("sctp_dbg_objcnt", 0,
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net->sctp.proc_net_sctp, &sctp_objcnt_ops);
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if (!ent)
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pr_warn("sctp_dbg_objcnt: Unable to create /proc entry.\n");
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}
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/* Cleanup the objcount entry in the proc filesystem. */
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void sctp_dbg_objcnt_exit(struct net *net)
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{
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remove_proc_entry("sctp_dbg_objcnt", net->sctp.proc_net_sctp);
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}
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