Deleted Added
sdiff udiff text old ( 120945 ) new ( 142403 )
full compact
afssys.c (120945) afssys.c (142403)
1/*
1/*
2 * Copyright (c) 1995 - 2000, 2002 Kungliga Tekniska H�gskolan
2 * Copyright (c) 1995 - 2000, 2002, 2004 Kungliga Tekniska H�gskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright

--- 17 unchanged lines hidden (view full) ---

28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#include "kafs_locl.h"
35
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright

--- 17 unchanged lines hidden (view full) ---

28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#include "kafs_locl.h"
35
36RCSID("$Id: afssys.c,v 1.69 2003/03/18 04:18:45 lha Exp $");
36RCSID("$Id: afssys.c,v 1.69.2.2 2004/06/22 14:29:48 lha Exp $");
37
37
38struct procdata {
39 unsigned long param4;
40 unsigned long param3;
41 unsigned long param2;
42 unsigned long param1;
43 unsigned long syscall;
44};
45#define VIOC_SYSCALL _IOW('C', 1, void *)
46
47
38int _kafs_debug; /* this should be done in a better way */
39
40#define NO_ENTRY_POINT 0
41#define SINGLE_ENTRY_POINT 1
42#define MULTIPLE_ENTRY_POINT 2
43#define SINGLE_ENTRY_POINT2 3
44#define SINGLE_ENTRY_POINT3 4
48int _kafs_debug; /* this should be done in a better way */
49
50#define NO_ENTRY_POINT 0
51#define SINGLE_ENTRY_POINT 1
52#define MULTIPLE_ENTRY_POINT 2
53#define SINGLE_ENTRY_POINT2 3
54#define SINGLE_ENTRY_POINT3 4
45#define AIX_ENTRY_POINTS 5
46#define UNKNOWN_ENTRY_POINT 6
55#define LINUX_PROC_POINT 5
56#define AIX_ENTRY_POINTS 6
57#define UNKNOWN_ENTRY_POINT 7
47static int afs_entry_point = UNKNOWN_ENTRY_POINT;
48static int afs_syscalls[2];
58static int afs_entry_point = UNKNOWN_ENTRY_POINT;
59static int afs_syscalls[2];
60static char *afs_procpath;
49
50/* Magic to get AIX syscalls to work */
51#ifdef _AIX
52
53static int (*Pioctl)(char*, int, struct ViceIoctl*, int);
54static int (*Setpag)(void);
55
56#include "dlfcn.h"

--- 70 unchanged lines hidden (view full) ---

127 return 0;
128 }
129 }
130 }
131 fclose (f);
132 return -1;
133}
134
61
62/* Magic to get AIX syscalls to work */
63#ifdef _AIX
64
65static int (*Pioctl)(char*, int, struct ViceIoctl*, int);
66static int (*Setpag)(void);
67
68#include "dlfcn.h"

--- 70 unchanged lines hidden (view full) ---

139 return 0;
140 }
141 }
142 }
143 fclose (f);
144 return -1;
145}
146
147static int
148try_proc(const char *path)
149{
150 int fd;
151 fd = open(path, O_RDWR);
152 if (fd < 0)
153 return 1;
154 close(fd);
155 afs_procpath = strdup(path);
156 if (afs_procpath == NULL)
157 return 1;
158 afs_entry_point = LINUX_PROC_POINT;
159 return 0;
160}
161
162static int
163do_proc(struct procdata *data)
164{
165 int fd, ret, saved_errno;
166 fd = open(afs_procpath, O_RDWR);
167 if (fd < 0) {
168 errno = EINVAL;
169 return -1;
170 }
171 ret = ioctl(fd, VIOC_SYSCALL, data);
172 saved_errno = errno;
173 close(fd);
174 errno = saved_errno;
175 return ret;
176}
177
135int
136k_pioctl(char *a_path,
137 int o_opcode,
138 struct ViceIoctl *a_paramsP,
139 int a_followSymlinks)
140{
141#ifndef NO_AFS
142 switch(afs_entry_point){

--- 4 unchanged lines hidden (view full) ---

147 return syscall(afs_syscalls[0], AFSCALL_PIOCTL,
148 a_path, o_opcode, a_paramsP, a_followSymlinks);
149#endif
150#if defined(AFS_PIOCTL)
151 case MULTIPLE_ENTRY_POINT:
152 return syscall(afs_syscalls[0],
153 a_path, o_opcode, a_paramsP, a_followSymlinks);
154#endif
178int
179k_pioctl(char *a_path,
180 int o_opcode,
181 struct ViceIoctl *a_paramsP,
182 int a_followSymlinks)
183{
184#ifndef NO_AFS
185 switch(afs_entry_point){

--- 4 unchanged lines hidden (view full) ---

190 return syscall(afs_syscalls[0], AFSCALL_PIOCTL,
191 a_path, o_opcode, a_paramsP, a_followSymlinks);
192#endif
193#if defined(AFS_PIOCTL)
194 case MULTIPLE_ENTRY_POINT:
195 return syscall(afs_syscalls[0],
196 a_path, o_opcode, a_paramsP, a_followSymlinks);
197#endif
198 case LINUX_PROC_POINT: {
199 struct procdata data = { 0, 0, 0, 0, AFSCALL_PIOCTL };
200 data.param1 = (unsigned long)a_path;
201 data.param2 = (unsigned long)o_opcode;
202 data.param3 = (unsigned long)a_paramsP;
203 data.param4 = (unsigned long)a_followSymlinks;
204 return do_proc(&data);
205 }
155#ifdef _AIX
156 case AIX_ENTRY_POINTS:
157 return Pioctl(a_path, o_opcode, a_paramsP, a_followSymlinks);
158#endif
206#ifdef _AIX
207 case AIX_ENTRY_POINTS:
208 return Pioctl(a_path, o_opcode, a_paramsP, a_followSymlinks);
209#endif
159 }
160
210 }
161 errno = ENOSYS;
162#ifdef SIGSYS
163 kill(getpid(), SIGSYS); /* You lose! */
164#endif
165#endif /* NO_AFS */
166 return -1;
167}
168

--- 26 unchanged lines hidden (view full) ---

195 case SINGLE_ENTRY_POINT2:
196 case SINGLE_ENTRY_POINT3:
197 return syscall(afs_syscalls[0], AFSCALL_SETPAG);
198#endif
199#if defined(AFS_PIOCTL)
200 case MULTIPLE_ENTRY_POINT:
201 return syscall(afs_syscalls[1]);
202#endif
211 errno = ENOSYS;
212#ifdef SIGSYS
213 kill(getpid(), SIGSYS); /* You lose! */
214#endif
215#endif /* NO_AFS */
216 return -1;
217}
218

--- 26 unchanged lines hidden (view full) ---

245 case SINGLE_ENTRY_POINT2:
246 case SINGLE_ENTRY_POINT3:
247 return syscall(afs_syscalls[0], AFSCALL_SETPAG);
248#endif
249#if defined(AFS_PIOCTL)
250 case MULTIPLE_ENTRY_POINT:
251 return syscall(afs_syscalls[1]);
252#endif
253 case LINUX_PROC_POINT: {
254 struct procdata data = { 0, 0, 0, 0, AFSCALL_SETPAG };
255 return do_proc(&data);
256 }
203#ifdef _AIX
204 case AIX_ENTRY_POINTS:
205 return Setpag();
206#endif
207 }
208
209 errno = ENOSYS;
210#ifdef SIGSYS

--- 172 unchanged lines hidden (view full) ---

383 }
384 }
385#endif
386
387 if(try_aix() == 0)
388 goto done;
389#endif
390
257#ifdef _AIX
258 case AIX_ENTRY_POINTS:
259 return Setpag();
260#endif
261 }
262
263 errno = ENOSYS;
264#ifdef SIGSYS

--- 172 unchanged lines hidden (view full) ---

437 }
438 }
439#endif
440
441 if(try_aix() == 0)
442 goto done;
443#endif
444
445 if (try_proc("/proc/fs/openafs/afs_ioctl") == 0)
446 goto done;
447 if (try_proc("/proc/fs/nnpfs/afs_ioctl") == 0)
448 goto done;
449 if (env && try_proc(env) == 0)
450 goto done;
451
391done:
392#ifdef SIGSYS
393 signal(SIGSYS, saved_func);
394#endif
395#endif /* NO_AFS */
396 errno = saved_errno;
397 return afs_entry_point != NO_ENTRY_POINT;
398}
452done:
453#ifdef SIGSYS
454 signal(SIGSYS, saved_func);
455#endif
456#endif /* NO_AFS */
457 errno = saved_errno;
458 return afs_entry_point != NO_ENTRY_POINT;
459}