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35 #define DEBUG_SUBSYSTEM S_SEC
37 #include <linux/init.h>
38 #include <linux/module.h>
39 #include <linux/slab.h>
40 #include <linux/dcache.h>
42 #include <linux/mutex.h>
44 #include <liblustre.h>
48 #include <obd_class.h>
49 #include <obd_support.h>
50 #include <lustre/lustre_idl.h>
51 #include <lustre_net.h>
52 #include <lustre_import.h>
53 #include <lprocfs_status.h>
54 #include <lustre_sec.h>
57 #include "gss_internal.h"
60 static struct proc_dir_entry *gss_proc_root = NULL;
61 static struct proc_dir_entry *gss_proc_lk = NULL;
64 * statistic of "out-of-sequence-window"
68 cfs_atomic_t oos_cli_count; /* client occurrence */
69 int oos_cli_behind; /* client max seqs behind */
70 cfs_atomic_t oos_svc_replay[3]; /* server replay detected */
71 cfs_atomic_t oos_svc_pass[3]; /* server verified ok */
73 .oos_cli_count = CFS_ATOMIC_INIT(0),
75 .oos_svc_replay = { CFS_ATOMIC_INIT(0), },
76 .oos_svc_pass = { CFS_ATOMIC_INIT(0), },
79 void gss_stat_oos_record_cli(int behind)
81 cfs_atomic_inc(&gss_stat_oos.oos_cli_count);
83 spin_lock(&gss_stat_oos.oos_lock);
84 if (behind > gss_stat_oos.oos_cli_behind)
85 gss_stat_oos.oos_cli_behind = behind;
86 spin_unlock(&gss_stat_oos.oos_lock);
89 void gss_stat_oos_record_svc(int phase, int replay)
91 LASSERT(phase >= 0 && phase <= 2);
94 cfs_atomic_inc(&gss_stat_oos.oos_svc_replay[phase]);
96 cfs_atomic_inc(&gss_stat_oos.oos_svc_pass[phase]);
99 static int gss_proc_read_oos(char *page, char **start, off_t off, int count,
100 int *eof, void *data)
104 written = snprintf(page, count,
107 "client fall behind seqwin\n"
109 " max seq behind: %d\n"
110 "server replay detected:\n"
114 "server verify ok:\n"
118 cfs_atomic_read(&gss_stat_oos.oos_cli_count),
119 gss_stat_oos.oos_cli_behind,
120 cfs_atomic_read(&gss_stat_oos.oos_svc_replay[0]),
121 cfs_atomic_read(&gss_stat_oos.oos_svc_replay[1]),
122 cfs_atomic_read(&gss_stat_oos.oos_svc_replay[2]),
123 cfs_atomic_read(&gss_stat_oos.oos_svc_pass[2]));
128 static int gss_proc_write_secinit(struct file *file, const char *buffer,
129 unsigned long count, void *data)
133 rc = gss_do_ctx_init_rpc((char *) buffer, count);
139 return ((int) count);
142 static struct lprocfs_vars gss_lprocfs_vars[] = {
143 { "replays", gss_proc_read_oos, NULL },
144 { "init_channel", NULL, gss_proc_write_secinit, NULL, NULL, 0222 },
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_read_dl(char *page, char **start, off_t off,
156 int count, int *eof, void *data)
158 return snprintf(page, count, "%u\n", gss_lk_debug_level);
161 static int gss_lk_proc_write_dl(struct file *file, const char *buffer,
162 unsigned long count, void *data)
166 rc = lprocfs_write_helper(buffer, count, &val);
170 if (val < 0 || val > 4)
173 gss_lk_debug_level = val;
177 static struct lprocfs_vars gss_lk_lprocfs_vars[] = {
178 { "debug_level", gss_lk_proc_read_dl, gss_lk_proc_write_dl, NULL },
182 void gss_exit_lproc(void)
185 lprocfs_remove(&gss_proc_lk);
190 lprocfs_remove(&gss_proc_root);
191 gss_proc_root = NULL;
195 int gss_init_lproc(void)
199 spin_lock_init(&gss_stat_oos.oos_lock);
201 gss_proc_root = lprocfs_register("gss", sptlrpc_proc_root,
202 gss_lprocfs_vars, NULL);
203 if (IS_ERR(gss_proc_root)) {
204 gss_proc_root = NULL;
205 GOTO(err_out, rc = PTR_ERR(gss_proc_root));
208 gss_proc_lk = lprocfs_register("lgss_keyring", gss_proc_root,
209 gss_lk_lprocfs_vars, NULL);
210 if (IS_ERR(gss_proc_lk)) {
212 GOTO(err_out, rc = PTR_ERR(gss_proc_root));
218 CERROR("failed to initialize gss lproc entries: %d\n", rc);