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 <linux/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
42 c_start(struct seq_file *m, loff_t *pos)
44 struct afs_q *cq, *tq;
48 ObtainReadLock(&afs_xcell);
49 for (cq = CellLRU.next; cq != &CellLRU; cq = tq) {
63 c_next(struct seq_file *m, void *p, loff_t *pos)
65 struct afs_q *cq = p, *tq;
79 c_stop(struct seq_file *m, void *p)
82 ReleaseReadLock(&afs_xcell);
87 c_show(struct seq_file *m, void *p)
90 struct cell *tc = QTOC(cq);
93 seq_printf(m, ">%s #(%d/%d)\n", tc->cellName,
94 tc->cellNum, tc->cellIndex);
96 for (j = 0; j < AFS_MAXCELLHOSTS; j++) {
99 if (!tc->cellHosts[j]) break;
101 addr = tc->cellHosts[j]->addr->sa_ip;
103 seq_printf(m, "%u.%u.%u.%u #%u.%u.%u.%u\n",
104 NIPQUAD(addr), NIPQUAD(addr));
106 seq_printf(m, "%pI4 #%pI4\n", &addr, &addr);
113 static struct seq_operations afs_csdb_op = {
121 afs_csdb_open(struct inode *inode, struct file *file)
123 return seq_open(file, &afs_csdb_op);
126 static struct file_operations afs_csdb_operations = {
127 .open = afs_csdb_open,
130 .release = seq_release,
134 uu_start(struct seq_file *m, loff_t *pos)
142 ObtainReadLock(&afs_xuser);
151 for (i = 0; i < NUSERS; i++) {
152 for (tu = afs_users[i]; tu; tu = tu->next) {
165 uu_next(struct seq_file *m, void *p, loff_t *pos)
167 struct unixuser *tu = p;
173 if (p != (void *)1) {
174 if (tu->next) return tu->next;
175 i = UHash(tu->uid) + 1;
178 for (; i < NUSERS; i++)
179 if (afs_users[i]) return afs_users[i];
184 uu_stop(struct seq_file *m, void *p)
187 ReleaseReadLock(&afs_xuser);
192 uu_show(struct seq_file *m, void *p)
195 struct unixuser *tu = p;
196 union tokenUnion *token;
199 if (p == (void *)1) {
200 seq_printf(m, "%10s %4s %-6s %-25s %10s",
201 "UID/PAG", "Refs", "States", "Cell", "ViceID");
202 seq_printf(m, " %10s %10s %10s %3s",
203 "Tok Set", "Tok Begin", "Tok Expire", "vno");
204 seq_printf(m, " %-15s %10s %10s %s\n",
205 "NFS Client", "UID/PAG", "Client UID", "Sysname(s)");
213 ReleaseReadLock(&afs_xuser);
215 afs_LockUser(tu, READ_LOCK, 0);
217 if (tu->cell == -1) {
218 cellname = "<default>";
220 tc = afs_GetCellStale(tu->cell, READ_LOCK);
221 if (tc) cellname = tc->cellName;
222 else cellname = "<unknown>";
225 seq_printf(m, "%10d %4d %04x %-25s %10d",
226 tu->uid, tu->refCount, tu->states, cellname, tu->viceId);
228 if (tc) afs_PutCell(tc, READ_LOCK);
230 if (tu->states & UHasTokens) {
231 token = afs_FindToken(tu->tokens, RX_SECIDX_KAD);
232 seq_printf(m, " %10d %10d %10d %3d",
234 (token!=NULL)?token->rxkad.clearToken.BeginTimestamp:0,
235 (token!=NULL)?token->rxkad.clearToken.EndTimestamp:0,
236 (token!=NULL)?token->rxkad.clearToken.AuthHandle:0);
238 seq_printf(m, " %-36s", "Tokens Not Set");
241 if (tu->exporter && tu->exporter->exp_type == EXP_NFS) {
242 struct nfsclientpag *np = (struct nfsclientpag *)(tu->exporter);
247 sprintf(ipaddr, "%u.%u.%u.%u", NIPQUAD(np->host));
249 sprintf(ipaddr, "%pI4", &np->host);
251 seq_printf(m, " %-15s %10d %10d", ipaddr, np->uid, np->client_uid);
252 if (np->sysnamecount) {
253 for (i = 0; i < np->sysnamecount; i++)
254 seq_printf(m, " %s", np->sysname[i]);
256 seq_printf(m, " <no sysname list>");
259 } else if (tu->exporter) {
260 seq_printf(m, " Unknown exporter type %d", tu->exporter->exp_type);
264 afs_PutUser(tu, READ_LOCK);
265 ObtainReadLock(&afs_xuser);
272 static struct seq_operations afs_unixuser_seqop = {
280 afs_unixuser_open(struct inode *inode, struct file *file)
282 return seq_open(file, &afs_unixuser_seqop);
285 static struct file_operations afs_unixuser_fops = {
286 .open = afs_unixuser_open,
289 .release = seq_release,
293 #else /* HAVE_LINUX_SEQ_FILE_H */
296 csdbproc_info(char *buffer, char **start, off_t offset, int length)
301 struct afs_q *cq, *tq;
304 /* 90 - 64 cellname, 10 for 32 bit num and index, plus
311 ObtainReadLock(&afs_xcell);
313 for (cq = CellLRU.next; cq != &CellLRU; cq = tq) {
314 tc = QTOC(cq); tq = QNext(cq);
321 sprintf(temp, ">%s #(%d/%d)\n", tc->cellName,
322 tc->cellNum, tc->cellIndex);
323 sprintf(buffer + len, "%-89s\n", temp);
325 if (pos >= offset+length) {
326 ReleaseReadLock(&afs_xcell);
331 for (cnt = 0; cnt < AFS_MAXCELLHOSTS; cnt++) {
332 if (!tc->cellHosts[cnt]) break;
337 addr = ntohl(tc->cellHosts[cnt]->addr->sa_ip);
338 sprintf(tbuffer, "%d.%d.%d.%d",
339 (int)((addr>>24) & 0xff),
340 (int)((addr>>16) & 0xff),
341 (int)((addr>>8) & 0xff), (int)( addr & 0xff));
342 sprintf(temp, "%s #%s\n", tbuffer, tbuffer);
343 sprintf(buffer + len, "%-89s\n", temp);
345 if (pos >= offset+length) {
346 ReleaseReadLock(&afs_xcell);
353 ReleaseReadLock(&afs_xcell);
358 *start = buffer + len - (pos - offset);
365 #endif /* HAVE_LINUX_SEQ_FILE_H */
370 struct proc_dir_entry *entry;
371 #if !defined(EXPORTED_PROC_ROOT_FS)
375 #if defined(EXPORTED_PROC_ROOT_FS)
376 openafs_procfs = proc_mkdir(PROC_FSDIRNAME, proc_root_fs);
378 sprintf(path, "fs/%s", PROC_FSDIRNAME);
379 openafs_procfs = proc_mkdir(path, NULL);
381 #ifdef HAVE_LINUX_SEQ_FILE_H
382 entry = create_proc_entry("unixusers", 0, openafs_procfs);
384 entry->proc_fops = &afs_unixuser_fops;
385 # if defined(STRUCT_PROC_DIR_ENTRY_HAS_OWNER)
386 entry->owner = THIS_MODULE;
389 entry = create_proc_entry(PROC_CELLSERVDB_NAME, 0, openafs_procfs);
391 entry->proc_fops = &afs_csdb_operations;
393 entry = create_proc_info_entry(PROC_CELLSERVDB_NAME, (S_IFREG|S_IRUGO), openafs_procfs, csdbproc_info);
395 #if defined(STRUCT_PROC_DIR_ENTRY_HAS_OWNER)
396 entry->owner = THIS_MODULE;
403 #if !defined(EXPORTED_PROC_ROOT_FS)
407 remove_proc_entry(PROC_CELLSERVDB_NAME, openafs_procfs);
408 #ifdef HAVE_LINUX_SEQ_FILE_H
409 remove_proc_entry("unixusers", openafs_procfs);
411 #if defined(EXPORTED_PROC_ROOT_FS)
412 remove_proc_entry(PROC_FSDIRNAME, proc_root_fs);
414 sprintf(path, "fs/%s", PROC_FSDIRNAME);
415 remove_proc_entry(path, NULL);