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14 * in the LICENSE file that accompanied this code).
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27 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
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37 #define DEBUG_SUBSYSTEM S_SEC
38 #include <linux/init.h>
39 #include <linux/module.h>
40 #include <linux/slab.h>
41 #include <linux/dcache.h>
43 #include <linux/mutex.h>
46 #include <obd_class.h>
47 #include <obd_support.h>
48 #include <lustre/lustre_idl.h>
49 #include <lustre_net.h>
50 #include <lustre_import.h>
51 #include <lprocfs_status.h>
52 #include <lustre_sec.h>
55 #include "gss_internal.h"
58 static struct proc_dir_entry *gss_proc_root = NULL;
59 static struct proc_dir_entry *gss_proc_lk = NULL;
62 * statistic of "out-of-sequence-window"
66 atomic_t oos_cli_count; /* client occurrence */
67 int oos_cli_behind; /* client max seqs behind */
68 atomic_t oos_svc_replay[3]; /* server replay detected */
69 atomic_t oos_svc_pass[3]; /* server verified ok */
71 .oos_cli_count = ATOMIC_INIT(0),
73 .oos_svc_replay = { ATOMIC_INIT(0), },
74 .oos_svc_pass = { ATOMIC_INIT(0), },
77 void gss_stat_oos_record_cli(int behind)
79 atomic_inc(&gss_stat_oos.oos_cli_count);
81 spin_lock(&gss_stat_oos.oos_lock);
82 if (behind > gss_stat_oos.oos_cli_behind)
83 gss_stat_oos.oos_cli_behind = behind;
84 spin_unlock(&gss_stat_oos.oos_lock);
87 void gss_stat_oos_record_svc(int phase, int replay)
89 LASSERT(phase >= 0 && phase <= 2);
92 atomic_inc(&gss_stat_oos.oos_svc_replay[phase]);
94 atomic_inc(&gss_stat_oos.oos_svc_pass[phase]);
97 static int gss_proc_oos_seq_show(struct seq_file *m, void *v)
99 return seq_printf(m, "seqwin: %u\n"
101 "client fall behind seqwin\n"
103 " max seq behind: %d\n"
104 "server replay detected:\n"
108 "server verify ok:\n"
112 atomic_read(&gss_stat_oos.oos_cli_count),
113 gss_stat_oos.oos_cli_behind,
114 atomic_read(&gss_stat_oos.oos_svc_replay[0]),
115 atomic_read(&gss_stat_oos.oos_svc_replay[1]),
116 atomic_read(&gss_stat_oos.oos_svc_replay[2]),
117 atomic_read(&gss_stat_oos.oos_svc_pass[2]));
119 LPROC_SEQ_FOPS_RO(gss_proc_oos);
122 gss_proc_write_secinit(struct file *file, const char *buffer,
123 size_t count, loff_t *off)
127 rc = gss_do_ctx_init_rpc((char *) buffer, count);
135 static const struct file_operations gss_proc_secinit = {
136 .write = gss_proc_write_secinit,
139 static struct lprocfs_vars gss_lprocfs_vars[] = {
141 .fops = &gss_proc_oos_fops },
142 { .name = "init_channel",
143 .fops = &gss_proc_secinit,
149 * for userspace helper lgss_keyring.
151 * debug_level: [0, 4], defined in utils/gss/lgss_utils.h
153 static int gss_lk_debug_level = 1;
155 static int gss_lk_proc_dl_seq_show(struct seq_file *m, void *v)
157 return seq_printf(m, "%u\n", gss_lk_debug_level);
161 gss_lk_proc_dl_seq_write(struct file *file, const char *buffer,
162 size_t count, loff_t *off)
166 rc = lprocfs_write_helper(buffer, count, &val);
170 if (val < 0 || val > 4)
173 gss_lk_debug_level = val;
176 LPROC_SEQ_FOPS(gss_lk_proc_dl);
178 static struct lprocfs_vars gss_lk_lprocfs_vars[] = {
179 { .name = "debug_level",
180 .fops = &gss_lk_proc_dl_fops },
184 void gss_exit_lproc(void)
187 lprocfs_remove(&gss_proc_lk);
192 lprocfs_remove(&gss_proc_root);
193 gss_proc_root = NULL;
197 int gss_init_lproc(void)
201 spin_lock_init(&gss_stat_oos.oos_lock);
203 gss_proc_root = lprocfs_register("gss", sptlrpc_proc_root,
204 gss_lprocfs_vars, NULL);
205 if (IS_ERR(gss_proc_root)) {
206 rc = PTR_ERR(gss_proc_root);
207 gss_proc_root = NULL;
211 gss_proc_lk = lprocfs_register("lgss_keyring", gss_proc_root,
212 gss_lk_lprocfs_vars, NULL);
213 if (IS_ERR(gss_proc_lk)) {
214 rc = PTR_ERR(gss_proc_lk);
222 CERROR("failed to initialize gss lproc entries: %d\n", rc);