patch-2.4.23 linux-2.4.23/net/sctp/proc.c
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- Lines: 130
- Date:
2003-11-28 10:26:21.000000000 -0800
- Orig file:
linux-2.4.22/net/sctp/proc.c
- Orig date:
1969-12-31 16:00:00.000000000 -0800
diff -urN linux-2.4.22/net/sctp/proc.c linux-2.4.23/net/sctp/proc.c
@@ -0,0 +1,129 @@
+/* SCTP kernel reference Implementation
+ * Copyright (c) 2003 International Business Machines, Corp.
+ *
+ * This file is part of the SCTP kernel reference Implementation
+ *
+ * The SCTP reference implementation 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, or (at your option)
+ * any later version.
+ *
+ * The SCTP reference implementation 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 GNU CC; see the file COPYING. If not, write to
+ * the Free Software Foundation, 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Please send any bug reports or fixes you make to the
+ * email address(es):
+ * lksctp developers <lksctp-developers@lists.sourceforge.net>
+ *
+ * Or submit a bug report through the following website:
+ * http://www.sf.net/projects/lksctp
+ *
+ * Written or modified by:
+ * Sridhar Samudrala <sri@us.ibm.com>
+ *
+ * Any bugs reported given to us we will try to fix... any fixes shared will
+ * be incorporated into the next SCTP release.
+ */
+
+#include <linux/types.h>
+#include <asm/semaphore.h>
+#include <linux/fs.h>
+#include <linux/seq_file.h>
+#include <linux/init.h>
+#include <net/sctp/sctp.h>
+
+static char *sctp_snmp_list[] = {
+#define SCTP_SNMP_ENTRY(x) #x
+ SCTP_SNMP_ENTRY(SctpCurrEstab),
+ SCTP_SNMP_ENTRY(SctpActiveEstabs),
+ SCTP_SNMP_ENTRY(SctpPassiveEstabs),
+ SCTP_SNMP_ENTRY(SctpAborteds),
+ SCTP_SNMP_ENTRY(SctpShutdowns),
+ SCTP_SNMP_ENTRY(SctpOutOfBlues),
+ SCTP_SNMP_ENTRY(SctpChecksumErrors),
+ SCTP_SNMP_ENTRY(SctpOutCtrlChunks),
+ SCTP_SNMP_ENTRY(SctpOutOrderChunks),
+ SCTP_SNMP_ENTRY(SctpOutUnorderChunks),
+ SCTP_SNMP_ENTRY(SctpInCtrlChunks),
+ SCTP_SNMP_ENTRY(SctpInOrderChunks),
+ SCTP_SNMP_ENTRY(SctpInUnorderChunks),
+ SCTP_SNMP_ENTRY(SctpFragUsrMsgs),
+ SCTP_SNMP_ENTRY(SctpReasmUsrMsgs),
+ SCTP_SNMP_ENTRY(SctpOutSCTPPacks),
+ SCTP_SNMP_ENTRY(SctpInSCTPPacks),
+#undef SCTP_SNMP_ENTRY
+};
+
+/* Return the current value of a particular entry in the mib by adding its
+ * per cpu counters.
+ */
+static unsigned long
+fold_field(void *mib[], int nr)
+{
+ unsigned long res = 0;
+ int i;
+ int sz = sizeof(struct sctp_mib);
+ unsigned long* begin;
+
+ sz /= sizeof(unsigned long);
+ begin = (unsigned long*) mib;
+
+ for (i=0; i<smp_num_cpus; i++) {
+ res += begin[2*cpu_logical_map(i)*sz + nr];
+ res += begin[(2*cpu_logical_map(i)+1)*sz + nr];
+ }
+ return res;
+}
+
+/* Display sctp snmp mib statistics(/proc/net/sctp/snmp). */
+static int sctp_snmp_seq_show(struct seq_file *seq, void *v)
+{
+ int i;
+
+ for (i = 0; i < sizeof(sctp_snmp_list) / sizeof(char *); i++)
+ seq_printf(seq, "%-32s\t%ld\n", sctp_snmp_list[i],
+ fold_field((void **)sctp_statistics, i));
+ return 0;
+}
+
+/* Initialize the seq file operations for 'snmp' object. */
+static int sctp_snmp_seq_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, sctp_snmp_seq_show, NULL);
+}
+
+static struct file_operations sctp_snmp_seq_fops = {
+ .open = sctp_snmp_seq_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+/* Set up the proc fs entry for 'snmp' object. */
+int __init sctp_snmp_proc_init(void)
+{
+ struct proc_dir_entry *p;
+
+ p = create_proc_entry("snmp", S_IRUGO, proc_net_sctp);
+ if (!p)
+ return -ENOMEM;
+
+ p->proc_fops = &sctp_snmp_seq_fops;
+
+ return 0;
+}
+
+/* Cleanup the proc fs entry for 'snmp' object. */
+void sctp_snmp_proc_exit(void)
+{
+ remove_proc_entry("snmp", proc_net_sctp);
+}
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