2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
11 * Linux module support routines.
14 #include <afsconfig.h>
15 #include "afs/param.h"
18 #include <linux/module.h> /* early to avoid printf->printk mapping */
19 #ifdef HAVE_LINUX_SEQ_FILE_H
20 #include <linux/seq_file.h>
22 #include "afs/sysincludes.h"
23 #include "afsincludes.h"
24 #include "afs/nfsclient.h"
25 #include "h/unistd.h" /* For syscall numbers. */
28 #ifdef AFS_AMD64_LINUX20_ENV
29 #include <asm/ia32_unistd.h>
32 #include <linux/proc_fs.h>
33 #include <linux/slab.h>
34 #include <linux/init.h>
35 #include <linux/sched.h>
36 #include <linux/kernel.h>
38 struct proc_dir_entry *openafs_procfs;
40 #ifdef HAVE_LINUX_SEQ_FILE_H
41 static void *c_start(struct seq_file *m, loff_t *pos)
43 struct afs_q *cq, *tq;
47 ObtainReadLock(&afs_xcell);
48 for (cq = CellLRU.next; cq != &CellLRU; cq = tq) {
61 static void *c_next(struct seq_file *m, void *p, loff_t *pos)
63 struct afs_q *cq = p, *tq;
76 static void c_stop(struct seq_file *m, void *p)
79 ReleaseReadLock(&afs_xcell);
83 static int c_show(struct seq_file *m, void *p)
86 struct cell *tc = QTOC(cq);
89 seq_printf(m, ">%s #(%d/%d)\n", tc->cellName,
90 tc->cellNum, tc->cellIndex);
92 for (j = 0; j < AFS_MAXCELLHOSTS; j++) {
95 if (!tc->cellHosts[j]) break;
97 addr = tc->cellHosts[j]->addr->sa_ip;
98 seq_printf(m, "%u.%u.%u.%u #%u.%u.%u.%u\n",
99 NIPQUAD(addr), NIPQUAD(addr));
105 static struct seq_operations afs_csdb_op = {
112 static int afs_csdb_open(struct inode *inode, struct file *file)
114 return seq_open(file, &afs_csdb_op);
117 static struct file_operations afs_csdb_operations = {
118 .open = afs_csdb_open,
121 .release = seq_release,
125 static void *uu_start(struct seq_file *m, loff_t *pos)
131 ObtainReadLock(&afs_xuser);
135 for (i = 0; i < NUSERS; i++) {
136 for (tu = afs_users[i]; tu; tu = tu->next) {
145 static void *uu_next(struct seq_file *m, void *p, loff_t *pos)
147 struct unixuser *tu = p;
153 if (p != (void *)1) {
154 if (tu->next) return tu->next;
155 i = UHash(tu->uid) + 1;
158 for (; i < NUSERS; i++)
159 if (afs_users[i]) return afs_users[i];
163 static void uu_stop(struct seq_file *m, void *p)
165 ReleaseReadLock(&afs_xuser);
168 static int uu_show(struct seq_file *m, void *p)
171 struct unixuser *tu = p;
174 if (p == (void *)1) {
175 seq_printf(m, "%10s %4s %-6s %-25s %10s",
176 "UID/PAG", "Refs", "States", "Cell", "ViceID");
177 seq_printf(m, " %10s %10s %10s %3s",
178 "Tok Set", "Tok Begin", "Tok Expire", "vno");
179 seq_printf(m, " %-15s %10s %10s %s\n",
180 "NFS Client", "UID/PAG", "Client UID", "Sysname(s)");
185 if (tu->cell == -1) {
186 cellname = "<default>";
188 tc = afs_GetCellStale(tu->cell, READ_LOCK);
189 if (tc) cellname = tc->cellName;
190 else cellname = "<unknown>";
193 seq_printf(m, "%10d %4d %04x %-25s %10d",
194 tu->uid, tu->refCount, tu->states, cellname, tu->vid);
196 if (tc) afs_PutCell(tc, READ_LOCK);
198 if (tu->states & UHasTokens) {
199 seq_printf(m, " %10d %10d %10d %3d",
200 tu->tokenTime, tu->ct.BeginTimestamp, tu->ct.EndTimestamp,
203 seq_printf(m, " %-36s", "Tokens Not Set");
206 if (tu->exporter && tu->exporter->exp_type == EXP_NFS) {
207 struct nfsclientpag *np = (struct nfsclientpag *)(tu->exporter);
211 sprintf(ipaddr, "%u.%u.%u.%u", NIPQUAD(np->host));
212 seq_printf(m, " %-15s %10d %10d", ipaddr, np->uid, np->client_uid);
213 if (np->sysnamecount) {
214 for (i = 0; i < np->sysnamecount; i++)
215 seq_printf(m, " %s", np->sysname[i]);
217 seq_printf(m, " <no sysname list>");
220 } else if (tu->exporter) {
221 seq_printf(m, " Unknown exporter type %d", tu->exporter->exp_type);
228 static struct seq_operations afs_unixuser_seqop = {
235 static int afs_unixuser_open(struct inode *inode, struct file *file)
237 return seq_open(file, &afs_unixuser_seqop);
240 static struct file_operations afs_unixuser_fops = {
241 .open = afs_unixuser_open,
244 .release = seq_release,
248 #else /* HAVE_LINUX_SEQ_FILE_H */
251 csdbproc_info(char *buffer, char **start, off_t offset, int
257 struct afs_q *cq, *tq;
260 /* 90 - 64 cellname, 10 for 32 bit num and index, plus
265 ObtainReadLock(&afs_xcell);
267 for (cq = CellLRU.next; cq != &CellLRU; cq = tq) {
268 tc = QTOC(cq); tq = QNext(cq);
275 sprintf(temp, ">%s #(%d/%d)\n", tc->cellName,
276 tc->cellNum, tc->cellIndex);
277 sprintf(buffer + len, "%-89s\n", temp);
279 if (pos >= offset+length) {
280 ReleaseReadLock(&afs_xcell);
285 for (cnt = 0; cnt < AFS_MAXCELLHOSTS; cnt++) {
286 if (!tc->cellHosts[cnt]) break;
291 addr = ntohl(tc->cellHosts[cnt]->addr->sa_ip);
292 sprintf(tbuffer, "%d.%d.%d.%d",
293 (int)((addr>>24) & 0xff),
294 (int)((addr>>16) & 0xff),
295 (int)((addr>>8) & 0xff), (int)( addr & 0xff));
296 sprintf(temp, "%s #%s\n", tbuffer, tbuffer);
297 sprintf(buffer + len, "%-89s\n", temp);
299 if (pos >= offset+length) {
300 ReleaseReadLock(&afs_xcell);
307 ReleaseReadLock(&afs_xcell);
310 *start = buffer + len - (pos - offset);
317 #endif /* HAVE_LINUX_SEQ_FILE_H */
322 struct proc_dir_entry *entry;
323 #if !defined(EXPORTED_PROC_ROOT_FS)
327 #if defined(EXPORTED_PROC_ROOT_FS)
328 openafs_procfs = proc_mkdir(PROC_FSDIRNAME, proc_root_fs);
330 sprintf(path, "fs/%s", PROC_FSDIRNAME);
331 openafs_procfs = proc_mkdir(path, NULL);
333 #ifdef HAVE_LINUX_SEQ_FILE_H
334 entry = create_proc_entry("unixusers", 0, openafs_procfs);
336 entry->proc_fops = &afs_unixuser_fops;
337 #if defined(STRUCT_PROC_DIR_ENTRY_HAS_OWNER)
338 entry->owner = THIS_MODULE;
341 entry = create_proc_entry(PROC_CELLSERVDB_NAME, 0, openafs_procfs);
343 entry->proc_fops = &afs_csdb_operations;
345 entry = create_proc_info_entry(PROC_CELLSERVDB_NAME, (S_IFREG|S_IRUGO), openafs_procfs, csdbproc_info);
347 #if defined(STRUCT_PROC_DIR_ENTRY_HAS_OWNER)
348 entry->owner = THIS_MODULE;
355 #if !defined(EXPORTED_PROC_ROOT_FS)
359 remove_proc_entry(PROC_CELLSERVDB_NAME, openafs_procfs);
360 #ifdef HAVE_LINUX_SEQ_FILE_H
361 remove_proc_entry("unixusers", openafs_procfs);
363 #if defined(EXPORTED_PROC_ROOT_FS)
364 remove_proc_entry(PROC_FSDIRNAME, proc_root_fs);
366 sprintf(path, "fs/%s", PROC_FSDIRNAME);
367 remove_proc_entry(path, NULL);