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805e021f CE |
1 | /* |
2 | * Copyright 2000, International Business Machines Corporation and others. | |
3 | * All Rights Reserved. | |
4 | * | |
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 | |
8 | */ | |
9 | ||
10 | /* | |
11 | * Information Technology Center | |
12 | * October 1987 | |
13 | * | |
14 | * Description: | |
15 | * The Andrew File System startup process. It is responsible for | |
16 | * reading and parsing the various configuration files, starting up | |
17 | * the kernel processes required by AFS and feeding the configuration | |
18 | * information to the kernel. | |
19 | * | |
20 | * Recognized flags are: | |
21 | * -blocks The number of blocks available in the workstation cache. | |
22 | * -files The target number of files in the workstation cache (Default: | |
23 | * 1000). | |
24 | * -rootvol The name of the root volume to use. | |
25 | * -stat The number of stat cache entries. | |
26 | * -hosts [OBSOLETE] List of servers to check for volume location info FOR THE | |
27 | * HOME CELL. | |
28 | * -memcache Use an in-memory cache rather than disk. | |
29 | * -cachedir The base directory for the workstation cache. | |
30 | * -mountdir The directory on which the AFS is to be mounted. | |
31 | * -confdir The configuration directory. | |
32 | * -nosettime Don't keep checking the time to avoid drift (default). | |
33 | * -settime [IGNORED] Keep checking the time to avoid drift. | |
34 | * -rxmaxmtu Set the max mtu to help with VPN issues. | |
35 | * -verbose Be chatty. | |
36 | * -disable-dynamic-vcaches Disable the use of -stat value as the starting size of | |
37 | * the size of the vcache/stat cache pool, | |
38 | * but increase that pool dynamically as needed. | |
39 | * -debug Print out additional debugging info. | |
40 | * -kerndev [OBSOLETE] The kernel device for AFS. | |
41 | * -dontfork [OBSOLETE] Don't fork off as a new process. | |
42 | * -daemons The number of background daemons to start (Default: 2). | |
43 | * -rmtsys Also fires up an afs remote sys call (e.g. pioctl, setpag) | |
44 | * support daemon | |
45 | * -chunksize [n] 2^n is the chunksize to be used. 0 is default. | |
46 | * -dcache The number of data cache entries. | |
47 | * -volumes The number of volume entries. | |
48 | * -biods Number of bkg I/O daemons (AIX3.1 only) | |
49 | * -prealloc Number of preallocated "small" memory blocks | |
50 | * -logfile [IGNORED] Place where to put the logfile (default in | |
51 | * <cache>/etc/AFSLog. | |
52 | * -waitclose make close calls always synchronous (slows em down, tho) | |
53 | * -files_per_subdir [n] number of files per cache subdir. (def=2048) | |
54 | * -shutdown Shutdown afs daemons | |
55 | * -enable_peer_stats Collect RPC statistics by peer. | |
56 | * -enable_process_stats Collect RPC statistics for this process. | |
57 | * -mem_alloc_sleep [IGNORED] Sleep when allocating memory. | |
58 | * -afsdb Enable AFSDB support. | |
59 | * -dynroot Enable dynroot support. | |
60 | * -dynroot-sparse Enable dynroot support with minimal cell list. | |
61 | * -fakestat Enable fake stat() for cross-cell mounts. | |
62 | * -fakestat-all Enable fake stat() for all mounts. | |
63 | * -nomount Do not mount /afs. | |
64 | * -backuptree Prefer backup volumes for mountpoints in backup volumes. | |
65 | * -rxbind Bind the rx socket. | |
66 | * -rxpck Value for rx_extraPackets. | |
67 | * -splitcache RW/RO ratio for cache. | |
68 | * -rxmaxfrags Max number of UDP fragments per rx packet. | |
69 | * -inumcalc inode number calculation method; 0=compat, 1=MD5 digest | |
70 | * -volume-ttl vldb cache timeout in seconds | |
71 | *---------------------------------------------------------------------------*/ | |
72 | ||
73 | #include <afsconfig.h> | |
74 | #include <afs/param.h> | |
75 | /* darwin dirent.h doesn't give us the prototypes we want if KERNEL is | |
76 | * defined, and roken includes dirent */ | |
77 | #if defined(UKERNEL) && defined(AFS_USR_DARWIN_ENV) | |
78 | # undef KERNEL | |
79 | # include <roken.h> | |
80 | # define KERNEL | |
81 | #else | |
82 | # include <roken.h> | |
83 | #endif | |
84 | ||
85 | #define VFS 1 | |
86 | ||
87 | #include <afs/stds.h> | |
88 | #include <afs/opr.h> | |
89 | #include <afs/opr_assert.h> | |
90 | ||
91 | #include <afs/cmd.h> | |
92 | ||
93 | #include "afsd.h" | |
94 | ||
95 | #include <afs/afsutil.h> | |
96 | ||
97 | #include <sys/file.h> | |
98 | #include <sys/wait.h> | |
99 | #include <hcrypto/rand.h> | |
100 | ||
101 | /* darwin dirent.h doesn't give us the prototypes we want if KERNEL is | |
102 | * defined */ | |
103 | #if defined(UKERNEL) && defined(AFS_USR_DARWIN_ENV) | |
104 | # undef KERNEL | |
105 | # include <dirent.h> | |
106 | # define KERNEL | |
107 | #else | |
108 | # include <dirent.h> | |
109 | #endif | |
110 | ||
111 | #ifdef HAVE_SYS_FS_TYPES_H | |
112 | #include <sys/fs_types.h> | |
113 | #endif | |
114 | ||
115 | #if defined(HAVE_SYS_MOUNT_H) && !defined(AFS_ARM_DARWIN_ENV) | |
116 | #include <sys/mount.h> | |
117 | #endif | |
118 | ||
119 | #ifdef HAVE_SYS_FCNTL_H | |
120 | #include <sys/fcntl.h> | |
121 | #endif | |
122 | ||
123 | #ifdef HAVE_SYS_MNTTAB_H | |
124 | #include <sys/mnttab.h> | |
125 | #endif | |
126 | ||
127 | #ifdef HAVE_SYS_MNTENT_H | |
128 | #include <sys/mntent.h> | |
129 | #endif | |
130 | ||
131 | #ifdef HAVE_MNTENT_H | |
132 | #include <mntent.h> | |
133 | #endif | |
134 | ||
135 | #ifdef HAVE_SYS_VFS_H | |
136 | #include <sys/vfs.h> | |
137 | #endif | |
138 | ||
139 | #ifdef HAVE_SYS_FSTYP_H | |
140 | #include <sys/fstyp.h> | |
141 | #endif | |
142 | ||
143 | #include <ctype.h> | |
144 | ||
145 | #include <afs/afs_args.h> | |
146 | #include <afs/cellconfig.h> | |
147 | #include <afs/afssyscalls.h> | |
148 | #include <afs/afsutil.h> | |
149 | #include <afs/sys_prototypes.h> | |
150 | ||
151 | #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV) | |
152 | #include <sym.h> | |
153 | #include <symconst.h> | |
154 | #endif | |
155 | #ifdef AFS_SGI65_ENV | |
156 | #include <sched.h> | |
157 | #endif | |
158 | ||
159 | #ifdef AFS_DARWIN_ENV | |
160 | #ifdef AFS_DARWIN80_ENV | |
161 | #include <sys/xattr.h> | |
162 | #endif | |
163 | #include <CoreFoundation/CoreFoundation.h> | |
164 | ||
165 | static int event_pid; | |
166 | #ifndef AFS_ARM_DARWIN_ENV | |
167 | #define MACOS_EVENT_HANDLING 1 | |
168 | #endif | |
169 | #endif /* AFS_DARWIN_ENV */ | |
170 | ||
171 | #if AFS_HAVE_STATVFS || defined(HAVE_SYS_STATVFS_H) | |
172 | #include <sys/statvfs.h> | |
173 | #else | |
174 | #if defined(AFS_SUN_ENV) | |
175 | #include <sys/vfs.h> | |
176 | #else | |
177 | #ifdef HAVE_SYS_STATFS_H | |
178 | #include <sys/statfs.h> | |
179 | #endif | |
180 | #endif | |
181 | #endif | |
182 | ||
183 | #undef VIRTUE | |
184 | #undef VICE | |
185 | ||
186 | ||
187 | #define CACHEINFOFILE "cacheinfo" | |
188 | #define DCACHEFILE "CacheItems" | |
189 | #define VOLINFOFILE "VolumeItems" | |
190 | #define CELLINFOFILE "CellItems" | |
191 | ||
192 | #define MAXIPADDRS 1024 | |
193 | ||
194 | char LclCellName[64]; | |
195 | ||
196 | #define MAX_CACHE_LOOPS 4 | |
197 | ||
198 | ||
199 | /* | |
200 | * Internet address (old style... should be updated). This was pulled out of the old 4.2 | |
201 | * version of <netinet/in.h>, since it's still useful. | |
202 | */ | |
203 | struct in_addr_42 { | |
204 | union { | |
205 | struct { | |
206 | u_char s_b1, s_b2, s_b3, s_b4; | |
207 | } S_un_b; | |
208 | struct { | |
209 | u_short s_w1, s_w2; | |
210 | } S_un_w; | |
211 | afs_uint32 S_addr; | |
212 | } S_un; | |
213 | }; | |
214 | ||
215 | #define mPrintIPAddr(ipaddr) printf("[%d.%d.%d.%d] ", \ | |
216 | ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b1, \ | |
217 | ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b2, \ | |
218 | ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b3, \ | |
219 | ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b4) | |
220 | ||
221 | /* | |
222 | * Global configuration variables. | |
223 | */ | |
224 | static int enable_rxbind = 0; | |
225 | static int afs_shutdown = 0; | |
226 | static int cacheBlocks; /*Num blocks in the cache */ | |
227 | static int cacheFiles; /*Optimal # of files in workstation cache */ | |
228 | static int rwpct = 0; | |
229 | static int ropct = 0; | |
230 | static int cacheStatEntries; /*Number of stat cache entries */ | |
231 | static char *cacheBaseDir; /*Where the workstation AFS cache lives */ | |
232 | static char *confDir; /*Where the workstation AFS configuration lives */ | |
233 | static char fullpn_DCacheFile[1024]; /*Full pathname of DCACHEFILE */ | |
234 | static char fullpn_VolInfoFile[1024]; /*Full pathname of VOLINFOFILE */ | |
235 | static char fullpn_CellInfoFile[1024]; /*Full pathanem of CELLINFOFILE */ | |
236 | static char fullpn_CacheInfo[1024]; /*Full pathname of CACHEINFO */ | |
237 | static char fullpn_VFile[1024]; /*Full pathname of data cache files */ | |
238 | static char *vFilePtr; /*Ptr to the number part of above pathname */ | |
239 | static int sawCacheMountDir = 0; /* from cmd line */ | |
240 | static int sawCacheBaseDir = 0; | |
241 | static int sawCacheBlocks = 0; | |
242 | static int sawDCacheSize = 0; | |
243 | #ifdef AFS_AIX32_ENV | |
244 | static int sawBiod = 0; | |
245 | #endif | |
246 | static int sawCacheStatEntries = 0; | |
247 | char *afsd_cacheMountDir; | |
248 | static char *rootVolume = NULL; | |
249 | #ifdef AFS_XBSD_ENV | |
250 | static int createAndTrunc = O_RDWR | O_CREAT | O_TRUNC; /*Create & truncate on open */ | |
251 | #else | |
252 | static int createAndTrunc = O_CREAT | O_TRUNC; /*Create & truncate on open */ | |
253 | #endif | |
254 | static int ownerRWmode = 0600; /*Read/write OK by owner */ | |
255 | static int filesSet = 0; /*True if number of files explicitly set */ | |
256 | static int nFilesPerDir = 2048; /* # files per cache dir */ | |
257 | #if defined(AFS_CACHE_BYPASS) | |
258 | #define AFSD_NDAEMONS 4 | |
259 | #else | |
260 | #define AFSD_NDAEMONS 2 | |
261 | #endif | |
262 | static int nDaemons = AFSD_NDAEMONS; /* Number of background daemons */ | |
263 | static int chunkSize = 0; /* 2^chunkSize bytes per chunk */ | |
264 | static int dCacheSize; /* # of dcache entries */ | |
265 | static int vCacheSize = 200; /* # of volume cache entries */ | |
266 | static int rootVolSet = 0; /*True if root volume name explicitly set */ | |
267 | int addrNum; /*Cell server address index being printed */ | |
268 | static int cacheFlags = 0; /*Flags to cache manager */ | |
269 | #ifdef AFS_AIX32_ENV | |
270 | static int nBiods = 5; /* AIX3.1 only */ | |
271 | #endif | |
272 | static int preallocs = 400; /* Def # of allocated memory blocks */ | |
273 | static int enable_peer_stats = 0; /* enable rx stats */ | |
274 | static int enable_process_stats = 0; /* enable rx stats */ | |
275 | static int enable_afsdb = 0; /* enable AFSDB support */ | |
276 | static int enable_dynroot = 0; /* enable dynroot support */ | |
277 | static int enable_fakestat = 0; /* enable fakestat support */ | |
278 | static int enable_backuptree = 0; /* enable backup tree support */ | |
279 | static int enable_nomount = 0; /* do not mount */ | |
280 | static int enable_splitcache = 0; | |
281 | static char *inumcalc = NULL; /* inode number calculation method */ | |
282 | static int afsd_dynamic_vcaches = 0; /* Enable dynamic-vcache support */ | |
283 | int afsd_verbose = 0; /*Are we being chatty? */ | |
284 | int afsd_debug = 0; /*Are we printing debugging info? */ | |
285 | static int afsd_CloseSynch = 0; /*Are closes synchronous or not? */ | |
286 | static int rxmaxmtu = 0; /* Are we forcing a limit on the mtu? */ | |
287 | static int rxmaxfrags = 0; /* Are we forcing a limit on frags? */ | |
288 | static int volume_ttl = 0; /* enable vldb cache timeout support */ | |
289 | ||
290 | #ifdef AFS_SGI62_ENV | |
291 | #define AFSD_INO_T ino64_t | |
292 | #else | |
293 | #define AFSD_INO_T afs_uint32 | |
294 | #endif | |
295 | struct afsd_file_list { | |
296 | int fileNum; | |
297 | struct afsd_file_list *next; | |
298 | }; | |
299 | struct afsd_file_list **cache_dir_filelist = NULL; | |
300 | int *cache_dir_list = NULL; /* Array of cache subdirs */ | |
301 | int *dir_for_V = NULL; /* Array: dir of each cache file. | |
302 | * -1: file does not exist | |
303 | * -2: file exists in top-level | |
304 | * >=0: file exists in Dxxx | |
305 | */ | |
306 | #if !defined(AFS_CACHE_VNODE_PATH) && !defined(AFS_LINUX26_ENV) | |
307 | AFSD_INO_T *inode_for_V; /* Array of inodes for desired | |
308 | * cache files */ | |
309 | #endif | |
310 | int missing_DCacheFile = 1; /*Is the DCACHEFILE missing? */ | |
311 | int missing_VolInfoFile = 1; /*Is the VOLINFOFILE missing? */ | |
312 | int missing_CellInfoFile = 1; /*Is the CELLINFOFILE missing? */ | |
313 | int afsd_rmtsys = 0; /* Default: don't support rmtsys */ | |
314 | struct afs_cacheParams cparams; /* params passed to cache manager */ | |
315 | ||
316 | int PartSizeOverflow(char *path, int cs); | |
317 | ||
318 | static int afsd_syscall(int code, ...); | |
319 | ||
320 | #if defined(AFS_SUN510_ENV) && defined(RXK_LISTENER_ENV) | |
321 | static void fork_rx_syscall_wait(const char *rn, int syscall, ...); | |
322 | #endif | |
323 | static void fork_rx_syscall(const char *rn, int syscall, ...); | |
324 | static void fork_syscall(const char *rn, int syscall, ...); | |
325 | ||
326 | enum optionsList { | |
327 | OPT_blocks, | |
328 | OPT_files, | |
329 | OPT_rootvol, | |
330 | OPT_stat, | |
331 | OPT_memcache, | |
332 | OPT_cachedir, | |
333 | OPT_mountdir, | |
334 | OPT_daemons, | |
335 | OPT_nosettime, | |
336 | OPT_verbose, | |
337 | OPT_rmtsys, | |
338 | OPT_debug, | |
339 | OPT_chunksize, | |
340 | OPT_dcache, | |
341 | OPT_volumes, | |
342 | OPT_biods, | |
343 | OPT_prealloc, | |
344 | OPT_confdir, | |
345 | OPT_logfile, | |
346 | OPT_waitclose, | |
347 | OPT_shutdown, | |
348 | OPT_peerstats, | |
349 | OPT_processstats, | |
350 | OPT_memallocsleep, | |
351 | OPT_afsdb, | |
352 | OPT_filesdir, | |
353 | OPT_dynroot, | |
354 | OPT_fakestat, | |
355 | OPT_fakestatall, | |
356 | OPT_nomount, | |
357 | OPT_backuptree, | |
358 | OPT_rxbind, | |
359 | OPT_settime, | |
360 | OPT_rxpck, | |
361 | OPT_splitcache, | |
362 | OPT_nodynvcache, | |
363 | OPT_rxmaxmtu, | |
364 | OPT_dynrootsparse, | |
365 | OPT_rxmaxfrags, | |
366 | OPT_inumcalc, | |
367 | OPT_volume_ttl, | |
368 | }; | |
369 | ||
370 | #ifdef MACOS_EVENT_HANDLING | |
371 | #include <SystemConfiguration/SystemConfiguration.h> | |
372 | #include <SystemConfiguration/SCDynamicStore.h> | |
373 | ||
374 | #include <IOKit/pwr_mgt/IOPMLib.h> | |
375 | #include <IOKit/IOMessage.h> | |
376 | ||
377 | static io_connect_t root_port; | |
378 | static IONotificationPortRef notify; | |
379 | static io_object_t iterator; | |
380 | static CFRunLoopSourceRef source; | |
381 | ||
382 | static void | |
383 | afsd_sleep_callback(void * refCon, io_service_t service, | |
384 | natural_t messageType, void * messageArgument ) | |
385 | { | |
386 | switch (messageType) { | |
387 | case kIOMessageCanSystemSleep: | |
388 | /* Idle sleep is about to kick in; can | |
389 | prevent sleep by calling IOCancelPowerChange, otherwise | |
390 | if we don't ack in 30s the system sleeps anyway */ | |
391 | ||
392 | /* allow it */ | |
393 | IOAllowPowerChange(root_port, (long)messageArgument); | |
394 | break; | |
395 | ||
396 | case kIOMessageSystemWillSleep: | |
397 | /* The system WILL go to sleep. Ack or suffer delay */ | |
398 | ||
399 | IOAllowPowerChange(root_port, (long)messageArgument); | |
400 | break; | |
401 | ||
402 | case kIOMessageSystemWillRestart: | |
403 | /* The system WILL restart. Ack or suffer delay */ | |
404 | ||
405 | IOAllowPowerChange(root_port, (long)messageArgument); | |
406 | break; | |
407 | ||
408 | case kIOMessageSystemWillPowerOn: | |
409 | case kIOMessageSystemHasPoweredOn: | |
410 | /* coming back from sleep */ | |
411 | ||
412 | IOAllowPowerChange(root_port, (long)messageArgument); | |
413 | break; | |
414 | ||
415 | default: | |
416 | IOAllowPowerChange(root_port, (long)messageArgument); | |
417 | break; | |
418 | } | |
419 | } | |
420 | ||
421 | static void | |
422 | afsd_update_addresses(CFRunLoopTimerRef timer, void *info) | |
423 | { | |
424 | /* parse multihomed address files */ | |
425 | afs_uint32 addrbuf[MAXIPADDRS], maskbuf[MAXIPADDRS], | |
426 | mtubuf[MAXIPADDRS]; | |
427 | char reason[1024]; | |
428 | int code; | |
429 | ||
430 | code = afsconf_ParseNetFiles(addrbuf, maskbuf, mtubuf, MAXIPADDRS, | |
431 | reason, AFSDIR_CLIENT_NETINFO_FILEPATH, | |
432 | AFSDIR_CLIENT_NETRESTRICT_FILEPATH); | |
433 | ||
434 | if (code > 0) { | |
435 | /* Note we're refreshing */ | |
436 | code = code | 0x40000000; | |
437 | afsd_syscall(AFSOP_ADVISEADDR, code, addrbuf, maskbuf, mtubuf); | |
438 | } else | |
439 | printf("ADVISEADDR: Error in specifying interface addresses:%s\n", | |
440 | reason); | |
441 | ||
442 | /* Since it's likely this means our DNS server changed, reinit now */ | |
443 | if (enable_afsdb) | |
444 | res_init(); | |
445 | } | |
446 | ||
447 | /* This function is called when the system's ip addresses may have changed. */ | |
448 | static void | |
449 | afsd_ipaddr_callback (SCDynamicStoreRef store, CFArrayRef changed_keys, void *info) | |
450 | { | |
451 | CFRunLoopTimerRef timer; | |
452 | ||
453 | timer = CFRunLoopTimerCreate (NULL, CFAbsoluteTimeGetCurrent () + 1.0, | |
454 | 0.0, 0, 0, afsd_update_addresses, NULL); | |
455 | CFRunLoopAddTimer (CFRunLoopGetCurrent (), timer, | |
456 | kCFRunLoopDefaultMode); | |
457 | CFRelease (timer); | |
458 | } | |
459 | ||
460 | static void | |
461 | afsd_event_cleanup(int signo) { | |
462 | ||
463 | CFRunLoopRemoveSource(CFRunLoopGetCurrent(), source, kCFRunLoopDefaultMode); | |
464 | CFRelease (source); | |
465 | IODeregisterForSystemPower(&iterator); | |
466 | IOServiceClose(root_port); | |
467 | IONotificationPortDestroy(notify); | |
468 | exit(0); | |
469 | } | |
470 | ||
471 | /* Adapted from "Living in a Dynamic TCP/IP Environment" technote. */ | |
472 | static void | |
473 | afsd_install_events(void) | |
474 | { | |
475 | SCDynamicStoreContext ctx = {0}; | |
476 | SCDynamicStoreRef store; | |
477 | ||
478 | root_port = IORegisterForSystemPower(0,¬ify,afsd_sleep_callback,&iterator); | |
479 | ||
480 | if (root_port) { | |
481 | CFRunLoopAddSource(CFRunLoopGetCurrent(), | |
482 | IONotificationPortGetRunLoopSource(notify), | |
483 | kCFRunLoopDefaultMode); | |
484 | } | |
485 | ||
486 | ||
487 | store = SCDynamicStoreCreate (NULL, | |
488 | CFSTR ("AddIPAddressListChangeCallbackSCF"), | |
489 | afsd_ipaddr_callback, &ctx); | |
490 | ||
491 | if (store) { | |
492 | const void *keys[1]; | |
493 | ||
494 | /* Request IPV4 address change notification */ | |
495 | keys[0] = (SCDynamicStoreKeyCreateNetworkServiceEntity | |
496 | (NULL, kSCDynamicStoreDomainState, | |
497 | kSCCompAnyRegex, kSCEntNetIPv4)); | |
498 | ||
499 | #if 0 | |
500 | /* This should tell us when the hostname(s) change. do we care? */ | |
501 | keys[N] = SCDynamicStoreKeyCreateHostNames (NULL); | |
502 | #endif | |
503 | ||
504 | if (keys[0] != NULL) { | |
505 | CFArrayRef pattern_array; | |
506 | ||
507 | pattern_array = CFArrayCreate (NULL, keys, 1, | |
508 | &kCFTypeArrayCallBacks); | |
509 | ||
510 | if (pattern_array != NULL) | |
511 | { | |
512 | SCDynamicStoreSetNotificationKeys (store, NULL, pattern_array); | |
513 | source = SCDynamicStoreCreateRunLoopSource (NULL, store, 0); | |
514 | ||
515 | CFRelease (pattern_array); | |
516 | } | |
517 | ||
518 | if (keys[0] != NULL) | |
519 | CFRelease (keys[0]); | |
520 | } | |
521 | ||
522 | CFRelease (store); | |
523 | } | |
524 | ||
525 | if (source != NULL) { | |
526 | CFRunLoopAddSource (CFRunLoopGetCurrent(), | |
527 | source, kCFRunLoopDefaultMode); | |
528 | } | |
529 | ||
530 | signal(SIGTERM, afsd_event_cleanup); | |
531 | ||
532 | CFRunLoopRun(); | |
533 | } | |
534 | #endif | |
535 | ||
536 | /* ParseArgs is now obsolete, being handled by cmd */ | |
537 | ||
538 | /*------------------------------------------------------------------------------ | |
539 | * ParseCacheInfoFile | |
540 | * | |
541 | * Description: | |
542 | * Open the file containing the description of the workstation's AFS cache | |
543 | * and pull out its contents. The format of this file is as follows: | |
544 | * | |
545 | * cacheMountDir:cacheBaseDir:cacheBlocks | |
546 | * | |
547 | * Arguments: | |
548 | * None. | |
549 | * | |
550 | * Returns: | |
551 | * 0 if everything went well, | |
552 | * 1 otherwise. | |
553 | * | |
554 | * Environment: | |
555 | * Nothing interesting. | |
556 | * | |
557 | * Side Effects: | |
558 | * Sets globals. | |
559 | *---------------------------------------------------------------------------*/ | |
560 | ||
561 | int | |
562 | ParseCacheInfoFile(void) | |
563 | { | |
564 | static char rn[] = "ParseCacheInfoFile"; /*This routine's name */ | |
565 | FILE *cachefd; /*Descriptor for cache info file */ | |
566 | int parseResult; /*Result of our fscanf() */ | |
567 | int tCacheBlocks; | |
568 | char tCacheBaseDir[1024], *tbd, tCacheMountDir[1024], *tmd; | |
569 | ||
570 | if (afsd_debug) | |
571 | printf("%s: Opening cache info file '%s'...\n", rn, fullpn_CacheInfo); | |
572 | ||
573 | cachefd = fopen(fullpn_CacheInfo, "r"); | |
574 | if (!cachefd) { | |
575 | printf("%s: Can't read cache info file '%s'\n", rn, fullpn_CacheInfo); | |
576 | return (1); | |
577 | } | |
578 | ||
579 | /* | |
580 | * Parse the contents of the cache info file. All chars up to the first | |
581 | * colon are the AFS mount directory, all chars to the next colon are the | |
582 | * full path name of the workstation cache directory and all remaining chars | |
583 | * represent the number of blocks in the cache. | |
584 | */ | |
585 | tCacheMountDir[0] = tCacheBaseDir[0] = '\0'; | |
586 | parseResult = | |
587 | fscanf(cachefd, "%1024[^:]:%1024[^:]:%d", tCacheMountDir, | |
588 | tCacheBaseDir, &tCacheBlocks); | |
589 | ||
590 | /* | |
591 | * Regardless of how the parse went, we close the cache info file. | |
592 | */ | |
593 | fclose(cachefd); | |
594 | ||
595 | if (parseResult == EOF || parseResult < 3) { | |
596 | printf("%s: Format error in cache info file!\n", rn); | |
597 | if (parseResult == EOF) | |
598 | printf("\tEOF encountered before any field parsed.\n"); | |
599 | else | |
600 | printf("\t%d out of 3 fields successfully parsed.\n", | |
601 | parseResult); | |
602 | ||
603 | return (1); | |
604 | } | |
605 | ||
606 | for (tmd = tCacheMountDir; *tmd == '\n' || *tmd == ' ' || *tmd == '\t'; | |
607 | tmd++); | |
608 | for (tbd = tCacheBaseDir; *tbd == '\n' || *tbd == ' ' || *tbd == '\t'; | |
609 | tbd++); | |
610 | /* now copy in the fields not explicitly overridden by cmd args */ | |
611 | if (!sawCacheMountDir) | |
612 | afsd_cacheMountDir = strdup(tmd); | |
613 | if (!sawCacheBaseDir) | |
614 | cacheBaseDir = strdup(tbd); | |
615 | if (!sawCacheBlocks) | |
616 | cacheBlocks = tCacheBlocks; | |
617 | ||
618 | if (afsd_debug) { | |
619 | printf("%s: Cache info file successfully parsed:\n", rn); | |
620 | printf | |
621 | ("\tcacheMountDir: '%s'\n\tcacheBaseDir: '%s'\n\tcacheBlocks: %d\n", | |
622 | tmd, tbd, tCacheBlocks); | |
623 | } | |
624 | if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) { | |
625 | return (PartSizeOverflow(tbd, cacheBlocks)); | |
626 | } | |
627 | ||
628 | return (0); | |
629 | } | |
630 | ||
631 | /* | |
632 | * All failures to open the partition are ignored. Also if the cache dir | |
633 | * isn't a mounted partition it's also ignored since we can't guarantee | |
634 | * what will be stored afterwards. Too many if's. This is now purely | |
635 | * advisory. ODS with over 2G partition also gives warning message. | |
636 | * | |
637 | * Returns: | |
638 | * 0 if everything went well, | |
639 | * 1 otherwise. | |
640 | */ | |
641 | int | |
642 | PartSizeOverflow(char *path, int cs) | |
643 | { | |
644 | int bsize = -1; | |
645 | afs_int64 totalblks, mint; | |
646 | #if AFS_HAVE_STATVFS || defined(HAVE_SYS_STATVFS_H) | |
647 | struct statvfs statbuf; | |
648 | ||
649 | if (statvfs(path, &statbuf) != 0) { | |
650 | if (afsd_debug) | |
651 | printf | |
652 | ("statvfs failed on %s; skip checking for adequate partition space\n", | |
653 | path); | |
654 | return 0; | |
655 | } | |
656 | totalblks = statbuf.f_blocks; | |
657 | bsize = statbuf.f_frsize; | |
658 | #if AFS_AIX51_ENV | |
659 | if (strcmp(statbuf.f_basetype, "jfs")) { | |
660 | fprintf(stderr, "Cache filesystem '%s' must be jfs (now %s)\n", | |
661 | path, statbuf.f_basetype); | |
662 | return 1; | |
663 | } | |
664 | #endif /* AFS_AIX51_ENV */ | |
665 | ||
666 | #else /* AFS_HAVE_STATVFS */ | |
667 | struct statfs statbuf; | |
668 | ||
669 | if (statfs(path, &statbuf) < 0) { | |
670 | if (afsd_debug) | |
671 | printf | |
672 | ("statfs failed on %s; skip checking for adequate partition space\n", | |
673 | path); | |
674 | return 0; | |
675 | } | |
676 | totalblks = statbuf.f_blocks; | |
677 | bsize = statbuf.f_bsize; | |
678 | #endif | |
679 | if (bsize == -1) | |
680 | return 0; /* success */ | |
681 | ||
682 | /* now free and totalblks are in fragment units, but we want them in 1K units */ | |
683 | if (bsize >= 1024) { | |
684 | totalblks *= (bsize / 1024); | |
685 | } else { | |
686 | totalblks /= (1024 / bsize); | |
687 | } | |
688 | ||
689 | mint = totalblks / 100 * 95; | |
690 | if (cs > mint) { | |
691 | printf | |
692 | ("Cache size (%d) must be less than 95%% of partition size (which is %lld). Lower cache size\n", | |
693 | cs, mint); | |
694 | return 1; | |
695 | } | |
696 | ||
697 | return 0; | |
698 | } | |
699 | ||
700 | /*----------------------------------------------------------------------------- | |
701 | * GetVFileNumber | |
702 | * | |
703 | * Description: | |
704 | * Given the final component of a filename expected to be a data cache file, | |
705 | * return the integer corresponding to the file. Note: we reject names that | |
706 | * are not a ``V'' followed by an integer. We also reject those names having | |
707 | * the right format but lying outside the range [0..cacheFiles-1]. | |
708 | * | |
709 | * Arguments: | |
710 | * fname : Char ptr to the filename to parse. | |
711 | * max : integer for the highest number to accept | |
712 | * | |
713 | * Returns: | |
714 | * >= 0 iff the file is really a data cache file numbered from 0 to cacheFiles-1, or | |
715 | * -1 otherwise. | |
716 | * | |
717 | * Environment: | |
718 | * Nothing interesting. | |
719 | * | |
720 | * Side Effects: | |
721 | * None. | |
722 | *---------------------------------------------------------------------------*/ | |
723 | ||
724 | static int | |
725 | doGetXFileNumber(char *fname, char filechar, int maxNum) | |
726 | { | |
727 | int computedVNumber; /*The computed file number we return */ | |
728 | int filenameLen; /*Number of chars in filename */ | |
729 | int currDigit; /*Current digit being processed */ | |
730 | ||
731 | /* | |
732 | * The filename must have at least two characters, the first of which must be a ``filechar'' | |
733 | * and the second of which cannot be a zero unless the file is exactly two chars long. | |
734 | */ | |
735 | filenameLen = strlen(fname); | |
736 | if (filenameLen < 2) | |
737 | return (-1); | |
738 | if (fname[0] != filechar) | |
739 | return (-1); | |
740 | if ((filenameLen > 2) && (fname[1] == '0')) | |
741 | return (-1); | |
742 | ||
743 | /* | |
744 | * Scan through the characters in the given filename, failing immediately if a non-digit | |
745 | * is found. | |
746 | */ | |
747 | for (currDigit = 1; currDigit < filenameLen; currDigit++) | |
748 | if (isdigit(fname[currDigit]) == 0) | |
749 | return (-1); | |
750 | ||
751 | /* | |
752 | * All relevant characters are digits. Pull out the decimal number they represent. | |
753 | * Reject it if it's out of range, otherwise return it. | |
754 | */ | |
755 | computedVNumber = atoi(++fname); | |
756 | if (computedVNumber < cacheFiles) | |
757 | return (computedVNumber); | |
758 | else | |
759 | return (-1); | |
760 | } | |
761 | ||
762 | int | |
763 | GetVFileNumber(char *fname, int maxFile) | |
764 | { | |
765 | return doGetXFileNumber(fname, 'V', maxFile); | |
766 | } | |
767 | ||
768 | int | |
769 | GetDDirNumber(char *fname, int maxDir) | |
770 | { | |
771 | return doGetXFileNumber(fname, 'D', maxDir); | |
772 | } | |
773 | ||
774 | ||
775 | /*----------------------------------------------------------------------------- | |
776 | * CreateCacheFile | |
777 | * | |
778 | * Description: | |
779 | * Given a full pathname for a file we need to create for the workstation AFS | |
780 | * cache, go ahead and create the file. | |
781 | * | |
782 | * Arguments: | |
783 | * fname : Full pathname of file to create. | |
784 | * statp : A pointer to a stat buffer which, if NON-NULL, will be | |
785 | * filled by fstat() | |
786 | * | |
787 | * Returns: | |
788 | * 0 iff the file was created, | |
789 | * -1 otherwise. | |
790 | * | |
791 | * Environment: | |
792 | * The given cache file has been found to be missing. | |
793 | * | |
794 | * Side Effects: | |
795 | * As described. | |
796 | *---------------------------------------------------------------------------*/ | |
797 | ||
798 | static int | |
799 | CreateCacheSubDir(char *basename, int dirNum) | |
800 | { | |
801 | static char rn[] = "CreateCacheSubDir"; /* Routine Name */ | |
802 | char dir[1024]; | |
803 | int ret; | |
804 | ||
805 | /* Build the new cache subdirectory */ | |
806 | sprintf(dir, "%s/D%d", basename, dirNum); | |
807 | ||
808 | if (afsd_debug) | |
809 | printf("%s: Creating cache subdir '%s'\n", rn, dir); | |
810 | ||
811 | if ((ret = mkdir(dir, 0700)) != 0) { | |
812 | printf("%s: Can't create '%s', error return is %d (%d)\n", rn, dir, | |
813 | ret, errno); | |
814 | if (errno != EEXIST) | |
815 | return (-1); | |
816 | } | |
817 | ||
818 | /* Mark this directory as created */ | |
819 | cache_dir_list[dirNum] = 0; | |
820 | ||
821 | /* And return success */ | |
822 | return (0); | |
823 | } | |
824 | ||
825 | static void | |
826 | SetNoBackupAttr(char *fullpn) | |
827 | { | |
828 | #ifdef AFS_DARWIN80_ENV | |
829 | int ret; | |
830 | ||
831 | ret = setxattr(fullpn, "com.apple.metadata:com_apple_backup_excludeItem", | |
832 | "com.apple.backupd", strlen("com.apple.backupd"), 0, | |
833 | XATTR_CREATE); | |
834 | if(ret < 0) | |
835 | { | |
836 | if(errno != EEXIST) | |
837 | fprintf(stderr, "afsd: Warning: failed to set attribute to preclude cache backup: %s\n", strerror(errno)); | |
838 | } | |
839 | #endif | |
840 | return; | |
841 | } | |
842 | ||
843 | static int | |
844 | MoveCacheFile(char *basename, int fromDir, int toDir, int cacheFile, | |
845 | int maxDir) | |
846 | { | |
847 | static char rn[] = "MoveCacheFile"; | |
848 | char from[1024], to[1024]; | |
849 | int ret; | |
850 | ||
851 | if (cache_dir_list[toDir] < 0 | |
852 | && (ret = CreateCacheSubDir(basename, toDir))) { | |
853 | printf("%s: Can't create directory '%s/D%d'\n", rn, basename, toDir); | |
854 | return ret; | |
855 | } | |
856 | ||
857 | /* Build the from,to dir */ | |
858 | if (fromDir < 0) { | |
859 | /* old-style location */ | |
860 | snprintf(from, sizeof(from), "%s/V%d", basename, cacheFile); | |
861 | } else { | |
862 | snprintf(from, sizeof(from), "%s/D%d/V%d", basename, fromDir, | |
863 | cacheFile); | |
864 | } | |
865 | ||
866 | snprintf(to, sizeof(from), "%s/D%d/V%d", basename, toDir, cacheFile); | |
867 | ||
868 | if (afsd_verbose) | |
869 | printf("%s: Moving cacheFile from '%s' to '%s'\n", rn, from, to); | |
870 | ||
871 | if ((ret = rename(from, to)) != 0) { | |
872 | printf("%s: Can't rename '%s' to '%s', error return is %d (%d)\n", rn, | |
873 | from, to, ret, errno); | |
874 | return -1; | |
875 | } | |
876 | SetNoBackupAttr(to); | |
877 | ||
878 | /* Reset directory pointer; fix file counts */ | |
879 | dir_for_V[cacheFile] = toDir; | |
880 | cache_dir_list[toDir]++; | |
881 | if (fromDir < maxDir && fromDir >= 0) | |
882 | cache_dir_list[fromDir]--; | |
883 | ||
884 | return 0; | |
885 | } | |
886 | ||
887 | int | |
888 | CreateCacheFile(char *fname, struct stat *statp) | |
889 | { | |
890 | static char rn[] = "CreateCacheFile"; /*Routine name */ | |
891 | int cfd; /*File descriptor to AFS cache file */ | |
892 | int closeResult; /*Result of close() */ | |
893 | ||
894 | if (afsd_debug) | |
895 | printf("%s: Creating cache file '%s'\n", rn, fname); | |
896 | cfd = open(fname, createAndTrunc, ownerRWmode); | |
897 | if (cfd <= 0) { | |
898 | printf("%s: Can't create '%s', error return is %d (%d)\n", rn, fname, | |
899 | cfd, errno); | |
900 | return (-1); | |
901 | } | |
902 | if (statp != NULL) { | |
903 | closeResult = fstat(cfd, statp); | |
904 | if (closeResult) { | |
905 | printf | |
906 | ("%s: Can't stat newly-created AFS cache file '%s' (code %d)\n", | |
907 | rn, fname, errno); | |
908 | return (-1); | |
909 | } | |
910 | } | |
911 | closeResult = close(cfd); | |
912 | if (closeResult) { | |
913 | printf | |
914 | ("%s: Can't close newly-created AFS cache file '%s' (code %d)\n", | |
915 | rn, fname, errno); | |
916 | return (-1); | |
917 | } | |
918 | ||
919 | return (0); | |
920 | } | |
921 | ||
922 | static void | |
923 | CreateFileIfMissing(char *fullpn, int missing) | |
924 | { | |
925 | if (missing) { | |
926 | if (CreateCacheFile(fullpn, NULL)) | |
927 | printf("CreateFileIfMissing: Can't create '%s'\n", fullpn); | |
928 | } | |
929 | } | |
930 | ||
931 | static void | |
932 | UnlinkUnwantedFile(char *rn, char *fullpn_FileToDelete, char *fileToDelete) | |
933 | { | |
934 | if (unlink(fullpn_FileToDelete)) { | |
935 | if ((errno == EISDIR || errno == EPERM) && *fileToDelete == 'D') { | |
936 | if (rmdir(fullpn_FileToDelete)) { | |
937 | printf("%s: Can't rmdir '%s', errno is %d\n", rn, | |
938 | fullpn_FileToDelete, errno); | |
939 | } | |
940 | } else | |
941 | printf("%s: Can't unlink '%s', errno is %d\n", rn, | |
942 | fullpn_FileToDelete, errno); | |
943 | } | |
944 | } | |
945 | ||
946 | /*----------------------------------------------------------------------------- | |
947 | * SweepAFSCache | |
948 | * | |
949 | * Description: | |
950 | * Sweep through the AFS cache directory, recording the inode number for | |
951 | * each valid data cache file there. Also, delete any file that doesn't belong | |
952 | * in the cache directory during this sweep, and remember which of the other | |
953 | * residents of this directory were seen. After the sweep, we create any data | |
954 | * cache files that were missing. | |
955 | * | |
956 | * Arguments: | |
957 | * vFilesFound : Set to the number of data cache files found. | |
958 | * | |
959 | * Returns: | |
960 | * 0 if everything went well, | |
961 | * -1 otherwise. | |
962 | * | |
963 | * Environment: | |
964 | * This routine may be called several times. If the number of data cache files | |
965 | * found is less than the global cacheFiles, then the caller will need to call it | |
966 | * again to record the inodes of the missing zero-length data cache files created | |
967 | * in the previous call. | |
968 | * | |
969 | * Side Effects: | |
970 | * Fills up the global inode_for_V array, may create and/or delete files as | |
971 | * explained above. | |
972 | *---------------------------------------------------------------------------*/ | |
973 | ||
974 | ||
975 | static int | |
976 | doSweepAFSCache(int *vFilesFound, | |
977 | char *directory, /* /path/to/cache/directory */ | |
978 | int dirNum, /* current directory number */ | |
979 | int maxDir) /* maximum directory number */ | |
980 | { | |
981 | static char rn[] = "doSweepAFSCache"; /* Routine Name */ | |
982 | char fullpn_FileToDelete[1024]; /*File to be deleted from cache */ | |
983 | char *fileToDelete; /*Ptr to last component of above */ | |
984 | DIR *cdirp; /*Ptr to cache directory structure */ | |
985 | #ifdef AFS_SGI62_ENV | |
986 | struct dirent64 *currp; /*Current directory entry */ | |
987 | #else | |
988 | struct dirent *currp; /*Current directory entry */ | |
989 | #endif | |
990 | int vFileNum; /*Data cache file's associated number */ | |
991 | int thisDir; /* A directory number */ | |
992 | int highDir = 0; | |
993 | ||
994 | if (afsd_debug) | |
995 | printf("%s: Opening cache directory '%s'\n", rn, directory); | |
996 | ||
997 | if (chmod(directory, 0700)) { /* force it to be 700 */ | |
998 | printf("%s: Can't 'chmod 0700' the cache dir, '%s'.\n", rn, | |
999 | directory); | |
1000 | return (-1); | |
1001 | } | |
1002 | cdirp = opendir(directory); | |
1003 | if (cdirp == (DIR *) 0) { | |
1004 | printf("%s: Can't open AFS cache directory, '%s'.\n", rn, directory); | |
1005 | return (-1); | |
1006 | } | |
1007 | ||
1008 | /* | |
1009 | * Scan the directory entries, remembering data cache file inodes | |
1010 | * and the existance of other important residents. Recurse into | |
1011 | * the data subdirectories. | |
1012 | * | |
1013 | * Delete all files and directories that don't belong here. | |
1014 | */ | |
1015 | sprintf(fullpn_FileToDelete, "%s/", directory); | |
1016 | fileToDelete = fullpn_FileToDelete + strlen(fullpn_FileToDelete); | |
1017 | ||
1018 | #ifdef AFS_SGI62_ENV | |
1019 | for (currp = readdir64(cdirp); currp; currp = readdir64(cdirp)) | |
1020 | #else | |
1021 | for (currp = readdir(cdirp); currp; currp = readdir(cdirp)) | |
1022 | #endif | |
1023 | { | |
1024 | if (afsd_debug) { | |
1025 | printf("%s: Current directory entry:\n", rn); | |
1026 | #if defined(AFS_SGI62_ENV) || defined(AFS_DARWIN90_ENV) | |
1027 | printf("\tinode=%" AFS_INT64_FMT ", reclen=%d, name='%s'\n", currp->d_ino, | |
1028 | currp->d_reclen, currp->d_name); | |
1029 | #elif defined(AFS_DFBSD_ENV) || defined(AFS_USR_DFBSD_ENV) | |
1030 | printf("\tinode=%ld, name='%s'\n", (long)currp->d_ino, currp->d_name); | |
1031 | #else | |
1032 | printf("\tinode=%ld, reclen=%d, name='%s'\n", (long)currp->d_ino, | |
1033 | currp->d_reclen, currp->d_name); | |
1034 | #endif | |
1035 | } | |
1036 | ||
1037 | /* | |
1038 | * If dirNum < 0, we are a top-level cache directory and should | |
1039 | * only contain sub-directories and other sundry files. Therefore, | |
1040 | * V-files are valid only if dirNum >= 0, and Directories are only | |
1041 | * valid if dirNum < 0. | |
1042 | */ | |
1043 | ||
1044 | if (*(currp->d_name) == 'V' | |
1045 | && ((vFileNum = GetVFileNumber(currp->d_name, cacheFiles)) >= | |
1046 | 0)) { | |
1047 | /* | |
1048 | * Found a valid data cache filename. Remember this | |
1049 | * file's inode, directory, and bump the number of files found | |
1050 | * total and in this directory. | |
1051 | */ | |
1052 | #if !defined(AFS_CACHE_VNODE_PATH) && !defined(AFS_LINUX26_ENV) | |
1053 | inode_for_V[vFileNum] = currp->d_ino; | |
1054 | #endif | |
1055 | dir_for_V[vFileNum] = dirNum; /* remember this directory */ | |
1056 | ||
1057 | if (!maxDir) { | |
1058 | /* If we're in a real subdir, mark this file to be moved | |
1059 | * if we've already got too many files in this directory | |
1060 | */ | |
1061 | assert(dirNum >= 0); | |
1062 | cache_dir_list[dirNum]++; /* keep directory's file count */ | |
1063 | if (cache_dir_list[dirNum] > nFilesPerDir) { | |
1064 | /* Too many files -- add to filelist */ | |
1065 | struct afsd_file_list *tmp = malloc(sizeof(*tmp)); | |
1066 | if (!tmp) | |
1067 | printf | |
1068 | ("%s: MALLOC FAILED allocating file_list entry\n", | |
1069 | rn); | |
1070 | else { | |
1071 | tmp->fileNum = vFileNum; | |
1072 | tmp->next = cache_dir_filelist[dirNum]; | |
1073 | cache_dir_filelist[dirNum] = tmp; | |
1074 | } | |
1075 | } | |
1076 | } | |
1077 | (*vFilesFound)++; | |
1078 | } else if (dirNum < 0 && (*(currp->d_name) == 'D') | |
1079 | && GetDDirNumber(currp->d_name, 1 << 30) >= 0) { | |
1080 | int retval = 0; | |
1081 | if ((vFileNum = GetDDirNumber(currp->d_name, maxDir)) >= 0) { | |
1082 | /* Found a valid cachefile sub-Directory. Remember this number | |
1083 | * and recurse into it. Note that subdirs cannot have subdirs. | |
1084 | */ | |
1085 | retval = 1; | |
1086 | } else if ((vFileNum = GetDDirNumber(currp->d_name, 1 << 30)) >= | |
1087 | 0) { | |
1088 | /* This directory is going away, but figure out if there | |
1089 | * are any cachefiles in here that should be saved by | |
1090 | * moving them to other cache directories. This directory | |
1091 | * will be removed later. | |
1092 | */ | |
1093 | retval = 2; | |
1094 | } | |
1095 | ||
1096 | /* Save the highest directory number we've seen */ | |
1097 | if (vFileNum > highDir) | |
1098 | highDir = vFileNum; | |
1099 | ||
1100 | /* If this directory is staying, be sure to mark it as 'found' */ | |
1101 | if (retval == 1) | |
1102 | cache_dir_list[vFileNum] = 0; | |
1103 | ||
1104 | /* Print the dirname for recursion */ | |
1105 | sprintf(fileToDelete, "%s", currp->d_name); | |
1106 | ||
1107 | /* Note: vFileNum is the directory number */ | |
1108 | retval = | |
1109 | doSweepAFSCache(vFilesFound, fullpn_FileToDelete, vFileNum, | |
1110 | (retval == 1 ? 0 : -1)); | |
1111 | if (retval) { | |
1112 | printf("%s: Recursive sweep failed on directory %s\n", rn, | |
1113 | currp->d_name); | |
1114 | return retval; | |
1115 | } | |
1116 | } else if (dirNum < 0 && strcmp(currp->d_name, DCACHEFILE) == 0) { | |
1117 | /* | |
1118 | * Found the file holding the dcache entries. | |
1119 | */ | |
1120 | missing_DCacheFile = 0; | |
1121 | SetNoBackupAttr(fullpn_DCacheFile); | |
1122 | } else if (dirNum < 0 && strcmp(currp->d_name, VOLINFOFILE) == 0) { | |
1123 | /* | |
1124 | * Found the file holding the volume info. | |
1125 | */ | |
1126 | missing_VolInfoFile = 0; | |
1127 | SetNoBackupAttr(fullpn_VolInfoFile); | |
1128 | } else if (dirNum < 0 && strcmp(currp->d_name, CELLINFOFILE) == 0) { | |
1129 | /* | |
1130 | * Found the file holding the cell info. | |
1131 | */ | |
1132 | missing_CellInfoFile = 0; | |
1133 | SetNoBackupAttr(fullpn_CellInfoFile); | |
1134 | } else if ((strcmp(currp->d_name, ".") == 0) | |
1135 | || (strcmp(currp->d_name, "..") == 0) || | |
1136 | #ifdef AFS_DECOSF_ENV | |
1137 | /* these are magic AdvFS files */ | |
1138 | (strcmp(currp->d_name, ".tags") == 0) | |
1139 | || (strcmp(currp->d_name, "quota.user") == 0) | |
1140 | || (strcmp(currp->d_name, "quota.group") == 0) || | |
1141 | #endif | |
1142 | #ifdef AFS_LINUX22_ENV | |
1143 | /* this is the ext3 journal file */ | |
1144 | (strcmp(currp->d_name, ".journal") == 0) || | |
1145 | #endif | |
1146 | (strcmp(currp->d_name, "lost+found") == 0)) { | |
1147 | /* | |
1148 | * Don't do anything - this file is legit, and is to be left alone. | |
1149 | */ | |
1150 | } else { | |
1151 | /* | |
1152 | * This file/directory doesn't belong in the cache. Nuke it. | |
1153 | */ | |
1154 | sprintf(fileToDelete, "%s", currp->d_name); | |
1155 | if (afsd_verbose) | |
1156 | printf("%s: Deleting '%s'\n", rn, fullpn_FileToDelete); | |
1157 | UnlinkUnwantedFile(rn, fullpn_FileToDelete, fileToDelete); | |
1158 | } | |
1159 | } | |
1160 | ||
1161 | if (dirNum < 0) { | |
1162 | ||
1163 | /* | |
1164 | * Create all the cache files that are missing. | |
1165 | */ | |
1166 | CreateFileIfMissing(fullpn_DCacheFile, missing_DCacheFile); | |
1167 | CreateFileIfMissing(fullpn_VolInfoFile, missing_VolInfoFile); | |
1168 | CreateFileIfMissing(fullpn_CellInfoFile, missing_CellInfoFile); | |
1169 | ||
1170 | /* ADJUST CACHE FILES */ | |
1171 | ||
1172 | /* First, let's walk through the list of files and figure out | |
1173 | * if there are any leftover files in extra directories or | |
1174 | * missing files. Move the former and create the latter in | |
1175 | * subdirs with extra space. | |
1176 | */ | |
1177 | ||
1178 | thisDir = 0; /* Keep track of which subdir has space */ | |
1179 | ||
1180 | for (vFileNum = 0; vFileNum < cacheFiles; vFileNum++) { | |
1181 | if (dir_for_V[vFileNum] == -1) { | |
1182 | /* This file does not exist. Create it in the first | |
1183 | * subdir that still has extra space. | |
1184 | */ | |
1185 | while (thisDir < maxDir | |
1186 | && cache_dir_list[thisDir] >= nFilesPerDir) | |
1187 | thisDir++; | |
1188 | if (thisDir >= maxDir) | |
1189 | printf("%s: can't find directory to create V%d\n", rn, | |
1190 | vFileNum); | |
1191 | else { | |
1192 | struct stat statb; | |
1193 | #if !defined(AFS_CACHE_VNODE_PATH) && !defined(AFS_LINUX26_ENV) | |
1194 | assert(inode_for_V[vFileNum] == (AFSD_INO_T) 0); | |
1195 | #endif | |
1196 | sprintf(vFilePtr, "D%d/V%d", thisDir, vFileNum); | |
1197 | if (afsd_verbose) | |
1198 | printf("%s: Creating '%s'\n", rn, fullpn_VFile); | |
1199 | if (cache_dir_list[thisDir] < 0 | |
1200 | && CreateCacheSubDir(directory, thisDir)) | |
1201 | printf("%s: Can't create directory for '%s'\n", rn, | |
1202 | fullpn_VFile); | |
1203 | if (CreateCacheFile(fullpn_VFile, &statb)) | |
1204 | printf("%s: Can't create '%s'\n", rn, fullpn_VFile); | |
1205 | else { | |
1206 | #if !defined(AFS_CACHE_VNODE_PATH) && !defined(AFS_LINUX26_ENV) | |
1207 | inode_for_V[vFileNum] = statb.st_ino; | |
1208 | #endif | |
1209 | dir_for_V[vFileNum] = thisDir; | |
1210 | cache_dir_list[thisDir]++; | |
1211 | (*vFilesFound)++; | |
1212 | } | |
1213 | SetNoBackupAttr(fullpn_VFile); | |
1214 | } | |
1215 | ||
1216 | } else if (dir_for_V[vFileNum] >= maxDir | |
1217 | || dir_for_V[vFileNum] == -2) { | |
1218 | /* This file needs to move; move it to the first subdir | |
1219 | * that has extra space. (-2 means it's in the toplevel) | |
1220 | */ | |
1221 | while (thisDir < maxDir | |
1222 | && cache_dir_list[thisDir] >= nFilesPerDir) | |
1223 | thisDir++; | |
1224 | if (thisDir >= maxDir) | |
1225 | printf("%s: can't find directory to move V%d\n", rn, | |
1226 | vFileNum); | |
1227 | else { | |
1228 | if (MoveCacheFile | |
1229 | (directory, dir_for_V[vFileNum], thisDir, vFileNum, | |
1230 | maxDir)) { | |
1231 | /* Cannot move. Ignore this file??? */ | |
1232 | /* XXX */ | |
1233 | } | |
1234 | } | |
1235 | } | |
1236 | } /* for */ | |
1237 | ||
1238 | /* At this point, we've moved all of the valid cache files | |
1239 | * into the valid subdirs, and created all the extra | |
1240 | * cachefiles we need to create. Next, rebalance any subdirs | |
1241 | * with too many cache files into the directories with not | |
1242 | * enough cache files. Note that thisDir currently sits at | |
1243 | * the lowest subdir that _may_ have room. | |
1244 | */ | |
1245 | ||
1246 | for (dirNum = 0; dirNum < maxDir; dirNum++) { | |
1247 | struct afsd_file_list *thisFile; | |
1248 | ||
1249 | for (thisFile = cache_dir_filelist[dirNum]; | |
1250 | thisFile && cache_dir_list[dirNum] >= nFilesPerDir; | |
1251 | thisFile = thisFile->next) { | |
1252 | while (thisDir < maxDir | |
1253 | && cache_dir_list[thisDir] >= nFilesPerDir) | |
1254 | thisDir++; | |
1255 | if (thisDir >= maxDir) | |
1256 | printf("%s: can't find directory to move V%d\n", rn, | |
1257 | vFileNum); | |
1258 | else { | |
1259 | if (MoveCacheFile | |
1260 | (directory, dirNum, thisDir, thisFile->fileNum, | |
1261 | maxDir)) { | |
1262 | /* Cannot move. Ignore this file??? */ | |
1263 | /* XXX */ | |
1264 | } | |
1265 | } | |
1266 | } /* for each file to move */ | |
1267 | } /* for each directory */ | |
1268 | ||
1269 | /* Remove any directories >= maxDir -- they should be empty */ | |
1270 | for (; highDir >= maxDir; highDir--) { | |
1271 | sprintf(fileToDelete, "D%d", highDir); | |
1272 | UnlinkUnwantedFile(rn, fullpn_FileToDelete, fileToDelete); | |
1273 | } | |
1274 | } | |
1275 | ||
1276 | /* dirNum < 0 */ | |
1277 | /* | |
1278 | * Close the directory, return success. | |
1279 | */ | |
1280 | if (afsd_debug) | |
1281 | printf("%s: Closing cache directory.\n", rn); | |
1282 | closedir(cdirp); | |
1283 | return (0); | |
1284 | } | |
1285 | ||
1286 | char * | |
1287 | CheckCacheBaseDir(char *dir) | |
1288 | { | |
1289 | struct stat statbuf; | |
1290 | ||
1291 | if (!dir) { | |
1292 | return "cache base dir not specified"; | |
1293 | } | |
1294 | if (stat(dir, &statbuf) != 0) { | |
1295 | return "unable to stat cache base directory"; | |
1296 | } | |
1297 | ||
1298 | /* might want to check here for anything else goofy, like cache pointed at a non-dedicated directory, etc */ | |
1299 | ||
1300 | #ifdef AFS_LINUX24_ENV | |
1301 | { | |
1302 | int res; | |
1303 | struct statfs statfsbuf; | |
1304 | ||
1305 | res = statfs(dir, &statfsbuf); | |
1306 | if (res != 0) { | |
1307 | return "unable to statfs cache base directory"; | |
1308 | } | |
1309 | #if !defined(AFS_LINUX26_ENV) | |
1310 | if (statfsbuf.f_type == 0x52654973) { /* REISERFS_SUPER_MAGIC */ | |
1311 | return "cannot use reiserfs as cache partition"; | |
1312 | } else if (statfsbuf.f_type == 0x58465342) { /* XFS_SUPER_MAGIC */ | |
1313 | return "cannot use xfs as cache partition"; | |
1314 | } else if (statfsbuf.f_type == 0x01021994) { /* TMPFS_SUPER_MAGIC */ | |
1315 | return "cannot use tmpfs as cache partition"; | |
1316 | } else if (statfsbuf.f_type != 0xEF53) { | |
1317 | return "must use ext2 or ext3 for cache partition"; | |
1318 | } | |
1319 | #endif | |
1320 | } | |
1321 | #endif | |
1322 | ||
1323 | #ifdef AFS_HPUX_ENV | |
1324 | { | |
1325 | int res; | |
1326 | struct statfs statfsbuf; | |
1327 | char name[FSTYPSZ]; | |
1328 | ||
1329 | res = statfs(dir, &statfsbuf); | |
1330 | if (res != 0) { | |
1331 | return "unable to statfs cache base directory"; | |
1332 | } | |
1333 | ||
1334 | if (sysfs(GETFSTYP, statfsbuf.f_fsid[1], name) != 0) { | |
1335 | return "unable to determine filesystem type for cache base dir"; | |
1336 | } | |
1337 | ||
1338 | if (strcmp(name, "hfs")) { | |
1339 | return "can only use hfs filesystem for cache partition on hpux"; | |
1340 | } | |
1341 | } | |
1342 | #endif | |
1343 | ||
1344 | #ifdef AFS_SUN5_ENV | |
1345 | { | |
1346 | FILE *vfstab; | |
1347 | struct mnttab mnt; | |
1348 | struct stat statmnt, statci; | |
1349 | ||
1350 | if ((stat(dir, &statci) == 0) | |
1351 | && ((vfstab = fopen(MNTTAB, "r")) != NULL)) { | |
1352 | while (getmntent(vfstab, &mnt) == 0) { | |
1353 | if (strcmp(dir, mnt.mnt_mountp) != 0) { | |
1354 | char *cp; | |
1355 | int rdev = 0; | |
1356 | ||
1357 | if (cp = hasmntopt(&mnt, "dev=")) | |
1358 | rdev = | |
1359 | (int)strtol(cp + strlen("dev="), NULL, | |
1360 | 16); | |
1361 | ||
1362 | if ((rdev == 0) && (stat(mnt.mnt_mountp, &statmnt) == 0)) | |
1363 | rdev = statmnt.st_dev; | |
1364 | ||
1365 | if ((rdev == statci.st_dev) | |
1366 | && (hasmntopt(&mnt, "logging") != NULL)) { | |
1367 | ||
1368 | fclose(vfstab); | |
1369 | return | |
1370 | "mounting a multi-use partition which contains the AFS cache with the\n\"logging\" option may deadlock your system.\n\n"; | |
1371 | } | |
1372 | } | |
1373 | } | |
1374 | ||
1375 | fclose(vfstab); | |
1376 | } | |
1377 | } | |
1378 | #endif | |
1379 | ||
1380 | return NULL; | |
1381 | } | |
1382 | ||
1383 | int | |
1384 | SweepAFSCache(int *vFilesFound) | |
1385 | { | |
1386 | static char rn[] = "SweepAFSCache"; /*Routine name */ | |
1387 | int maxDir = (cacheFiles + nFilesPerDir - 1) / nFilesPerDir; | |
1388 | int i; | |
1389 | ||
1390 | *vFilesFound = 0; | |
1391 | ||
1392 | if (cacheFlags & AFSCALL_INIT_MEMCACHE) { | |
1393 | if (afsd_debug) | |
1394 | printf("%s: Memory Cache, no cache sweep done\n", rn); | |
1395 | return 0; | |
1396 | } | |
1397 | ||
1398 | if (cache_dir_list == NULL) { | |
1399 | cache_dir_list = malloc(maxDir * sizeof(*cache_dir_list)); | |
1400 | if (cache_dir_list == NULL) { | |
1401 | printf("%s: Malloc Failed!\n", rn); | |
1402 | return (-1); | |
1403 | } | |
1404 | for (i = 0; i < maxDir; i++) | |
1405 | cache_dir_list[i] = -1; /* Does not exist */ | |
1406 | } | |
1407 | ||
1408 | if (cache_dir_filelist == NULL) { | |
1409 | cache_dir_filelist = calloc(maxDir, sizeof(*cache_dir_filelist)); | |
1410 | if (cache_dir_filelist == NULL) { | |
1411 | printf("%s: Malloc Failed!\n", rn); | |
1412 | return (-1); | |
1413 | } | |
1414 | } | |
1415 | ||
1416 | if (dir_for_V == NULL) { | |
1417 | dir_for_V = malloc(cacheFiles * sizeof(*dir_for_V)); | |
1418 | if (dir_for_V == NULL) { | |
1419 | printf("%s: Malloc Failed!\n", rn); | |
1420 | return (-1); | |
1421 | } | |
1422 | for (i = 0; i < cacheFiles; i++) | |
1423 | dir_for_V[i] = -1; /* Does not exist */ | |
1424 | } | |
1425 | ||
1426 | /* Note, setting dirNum to -2 here will cause cachefiles found in | |
1427 | * the toplevel directory to be marked in directory "-2". This | |
1428 | * allows us to differentiate between 'file not seen' (-1) and | |
1429 | * 'file seen in top-level' (-2). Then when we try to move the | |
1430 | * file into a subdirectory, we know it's in the top-level instead | |
1431 | * of some other cache subdir. | |
1432 | */ | |
1433 | return doSweepAFSCache(vFilesFound, cacheBaseDir, -2, maxDir); | |
1434 | } | |
1435 | ||
1436 | static int | |
1437 | ConfigCell(struct afsconf_cell *aci, void *arock, struct afsconf_dir *adir) | |
1438 | { | |
1439 | int isHomeCell; | |
1440 | int i, code; | |
1441 | int cellFlags = 0; | |
1442 | afs_int32 hosts[MAXHOSTSPERCELL]; | |
1443 | ||
1444 | /* figure out if this is the home cell */ | |
1445 | isHomeCell = (strcmp(aci->name, LclCellName) == 0); | |
1446 | if (!isHomeCell) { | |
1447 | cellFlags = 2; /* not home, suid is forbidden */ | |
1448 | if (enable_dynroot == 2) | |
1449 | cellFlags |= 8; /* don't display foreign cells until looked up */ | |
1450 | } | |
1451 | /* build address list */ | |
1452 | for (i = 0; i < MAXHOSTSPERCELL; i++) | |
1453 | memcpy(&hosts[i], &aci->hostAddr[i].sin_addr, sizeof(afs_int32)); | |
1454 | ||
1455 | if (aci->linkedCell) | |
1456 | cellFlags |= 4; /* Flag that linkedCell arg exists, | |
1457 | * for upwards compatibility */ | |
1458 | ||
1459 | /* configure one cell */ | |
1460 | code = afsd_syscall(AFSOP_ADDCELL2, hosts, /* server addresses */ | |
1461 | aci->name, /* cell name */ | |
1462 | cellFlags, /* is this the home cell? */ | |
1463 | aci->linkedCell); /* Linked cell, if any */ | |
1464 | if (code) | |
1465 | printf("Adding cell '%s': error %d\n", aci->name, code); | |
1466 | return 0; | |
1467 | } | |
1468 | ||
1469 | static int | |
1470 | ConfigCellAlias(struct afsconf_cellalias *aca, | |
1471 | void *arock, struct afsconf_dir *adir) | |
1472 | { | |
1473 | /* push the alias into the kernel */ | |
1474 | afsd_syscall(AFSOP_ADDCELLALIAS, aca->aliasName, aca->realName); | |
1475 | return 0; | |
1476 | } | |
1477 | ||
1478 | static void | |
1479 | AfsdbLookupHandler(void) | |
1480 | { | |
1481 | afs_int32 kernelMsg[64]; | |
1482 | char acellName[128]; | |
1483 | afs_int32 code; | |
1484 | struct afsconf_cell acellInfo; | |
1485 | int i; | |
1486 | ||
1487 | kernelMsg[0] = 0; | |
1488 | kernelMsg[1] = 0; | |
1489 | acellName[0] = '\0'; | |
1490 | ||
1491 | #ifdef MACOS_EVENT_HANDLING | |
1492 | /* Fork the event handler also. */ | |
1493 | code = fork(); | |
1494 | if (code == 0) { | |
1495 | afsd_install_events(); | |
1496 | return; | |
1497 | } else if (code != -1) { | |
1498 | event_pid = code; | |
1499 | } | |
1500 | #endif | |
1501 | while (1) { | |
1502 | /* On some platforms you only get 4 args to an AFS call */ | |
1503 | int sizeArg = ((sizeof acellName) << 16) | (sizeof kernelMsg); | |
1504 | code = | |
1505 | afsd_syscall(AFSOP_AFSDB_HANDLER, acellName, kernelMsg, sizeArg); | |
1506 | if (code) { /* Something is wrong? */ | |
1507 | sleep(1); | |
1508 | continue; | |
1509 | } | |
1510 | ||
1511 | if (*acellName == 1) /* Shutting down */ | |
1512 | break; | |
1513 | ||
1514 | code = afsconf_GetAfsdbInfo(acellName, 0, &acellInfo); | |
1515 | if (code) { | |
1516 | kernelMsg[0] = 0; | |
1517 | kernelMsg[1] = 0; | |
1518 | } else { | |
1519 | kernelMsg[0] = acellInfo.numServers; | |
1520 | if (acellInfo.timeout) | |
1521 | kernelMsg[1] = acellInfo.timeout - time(0); | |
1522 | else | |
1523 | kernelMsg[1] = 0; | |
1524 | for (i = 0; i < acellInfo.numServers; i++) | |
1525 | kernelMsg[i + 2] = acellInfo.hostAddr[i].sin_addr.s_addr; | |
1526 | strncpy(acellName, acellInfo.name, sizeof(acellName)); | |
1527 | acellName[sizeof(acellName) - 1] = '\0'; | |
1528 | } | |
1529 | } | |
1530 | #ifdef AFS_DARWIN_ENV | |
1531 | kill(event_pid, SIGTERM); | |
1532 | #endif | |
1533 | } | |
1534 | ||
1535 | #ifdef AFS_NEW_BKG | |
1536 | static void | |
1537 | BkgHandler(void) | |
1538 | { | |
1539 | afs_int32 code; | |
1540 | struct afs_uspc_param *uspc; | |
1541 | char srcName[256]; | |
1542 | char dstName[256]; | |
1543 | ||
1544 | uspc = calloc(1, sizeof(struct afs_uspc_param)); | |
1545 | memset(srcName, 0, sizeof(srcName)); | |
1546 | memset(dstName, 0, sizeof(dstName)); | |
1547 | ||
1548 | /* brscount starts at 0 */ | |
1549 | uspc->ts = -1; | |
1550 | ||
1551 | while (1) { | |
1552 | pid_t child = 0; | |
1553 | int status; | |
1554 | char srcpath[BUFSIZ]; | |
1555 | char dstpath[BUFSIZ]; | |
1556 | ||
1557 | /* pushing in a buffer this large */ | |
1558 | uspc->bufSz = 256; | |
1559 | ||
1560 | code = afsd_syscall(AFSOP_BKG_HANDLER, uspc, srcName, dstName); | |
1561 | if (code) { /* Something is wrong? */ | |
1562 | if (code == -2) /* shutting down */ | |
1563 | break; | |
1564 | ||
1565 | sleep(1); | |
1566 | uspc->retval = -1; | |
1567 | continue; | |
1568 | } | |
1569 | ||
1570 | switch (uspc->reqtype) { | |
1571 | case AFS_USPC_UMV: | |
1572 | snprintf(srcpath, BUFSIZ, "/afs/.:mount/%d:%d:%d:%d/%s", | |
1573 | uspc->req.umv.sCell, uspc->req.umv.sVolume, | |
1574 | uspc->req.umv.sVnode, uspc->req.umv.sUnique, srcName); | |
1575 | snprintf(dstpath, BUFSIZ, "/afs/.:mount/%d:%d:%d:%d/%s", | |
1576 | uspc->req.umv.dCell, uspc->req.umv.dVolume, | |
1577 | uspc->req.umv.dVnode, uspc->req.umv.dUnique, dstName); | |
1578 | if ((child = fork()) == 0) { | |
1579 | /* first child does cp; second, rm. mv would re-enter. */ | |
1580 | ||
1581 | switch (uspc->req.umv.idtype) { | |
1582 | case IDTYPE_UID: | |
1583 | if (setuid(uspc->req.umv.id) != 0) { | |
1584 | exit(-1); | |
1585 | } | |
1586 | break; | |
1587 | default: | |
1588 | exit(-1); | |
1589 | break; /* notreached */ | |
1590 | } | |
1591 | execl("/bin/cp", "(afsd EXDEV helper)", "-PRp", "--", srcpath, | |
1592 | dstpath, (char *) NULL); | |
1593 | } | |
1594 | if (child == (pid_t) -1) { | |
1595 | uspc->retval = -1; | |
1596 | continue; | |
1597 | } | |
1598 | ||
1599 | if (waitpid(child, &status, 0) == -1) | |
1600 | uspc->retval = EIO; | |
1601 | else if (WIFEXITED(status) != 0 && WEXITSTATUS(status) == 0) { | |
1602 | if ((child = fork()) == 0) { | |
1603 | switch (uspc->req.umv.idtype) { | |
1604 | case IDTYPE_UID: | |
1605 | if (setuid(uspc->req.umv.id) != 0) { | |
1606 | exit(-1); | |
1607 | } | |
1608 | break; | |
1609 | default: | |
1610 | exit(-1); | |
1611 | break; /* notreached */ | |
1612 | } | |
1613 | execl("/bin/rm", "(afsd EXDEV helper)", "-rf", "--", | |
1614 | srcpath, (char *) NULL); | |
1615 | } | |
1616 | if (child == (pid_t) -1) { | |
1617 | uspc->retval = -1; | |
1618 | continue; | |
1619 | } | |
1620 | if (waitpid(child, &status, 0) == -1) | |
1621 | uspc->retval = EIO; | |
1622 | else if (WIFEXITED(status) != 0) { | |
1623 | /* rm exit status */ | |
1624 | uspc->retval = WEXITSTATUS(status); | |
1625 | } else { | |
1626 | /* rm signal status */ | |
1627 | uspc->retval = -(WTERMSIG(status)); | |
1628 | } | |
1629 | } else { | |
1630 | /* error from cp: exit or signal status */ | |
1631 | uspc->retval = (WIFEXITED(status) != 0) ? | |
1632 | WEXITSTATUS(status) : -(WTERMSIG(status)); | |
1633 | } | |
1634 | memset(srcName, 0, sizeof(srcName)); | |
1635 | memset(dstName, 0, sizeof(dstName)); | |
1636 | break; | |
1637 | ||
1638 | default: | |
1639 | /* unknown req type */ | |
1640 | uspc->retval = -1; | |
1641 | break; | |
1642 | } | |
1643 | } | |
1644 | } | |
1645 | #endif | |
1646 | ||
1647 | static void * | |
1648 | afsdb_thread(void *rock) | |
1649 | { | |
1650 | /* Since the AFSDB lookup handler runs as a user process, | |
1651 | * need to drop the controlling TTY, etc. | |
1652 | */ | |
1653 | if (afsd_daemon(0, 0) == -1) { | |
1654 | printf("Error starting AFSDB lookup handler: %s\n", | |
1655 | strerror(errno)); | |
1656 | exit(1); | |
1657 | } | |
1658 | AfsdbLookupHandler(); | |
1659 | return NULL; | |
1660 | } | |
1661 | ||
1662 | static void * | |
1663 | daemon_thread(void *rock) | |
1664 | { | |
1665 | #ifdef AFS_NEW_BKG | |
1666 | /* Since the background daemon runs as a user process, | |
1667 | * need to drop the controlling TTY, etc. | |
1668 | */ | |
1669 | if (afsd_daemon(0, 0) == -1) { | |
1670 | printf("Error starting background daemon: %s\n", | |
1671 | strerror(errno)); | |
1672 | exit(1); | |
1673 | } | |
1674 | BkgHandler(); | |
1675 | #else | |
1676 | afsd_syscall(AFSOP_START_BKG, 0); | |
1677 | #endif | |
1678 | return NULL; | |
1679 | } | |
1680 | ||
1681 | #ifndef UKERNEL | |
1682 | static void * | |
1683 | rmtsysd_thread(void *rock) | |
1684 | { | |
1685 | rmtsysd(); | |
1686 | return NULL; | |
1687 | } | |
1688 | #endif /* !UKERNEL */ | |
1689 | ||
1690 | /** | |
1691 | * Check the command line and cacheinfo options. | |
1692 | * | |
1693 | * @param[in] as parsed command line arguments | |
1694 | * | |
1695 | * @note Invokes the shutdown syscall and exits with 0 when | |
1696 | * -shutdown is given. | |
1697 | */ | |
1698 | static int | |
1699 | CheckOptions(struct cmd_syndesc *as) | |
1700 | { | |
1701 | afs_int32 code; /*Result of fork() */ | |
1702 | #ifdef AFS_SUN5_ENV | |
1703 | struct stat st; | |
1704 | #endif | |
1705 | #ifdef AFS_SGI65_ENV | |
1706 | struct sched_param sp; | |
1707 | #endif | |
1708 | ||
1709 | #ifdef AFS_SGI_VNODE_GLUE | |
1710 | if (afs_init_kernel_config(-1) < 0) { | |
1711 | printf("Can't determine NUMA configuration, not starting AFS.\n"); | |
1712 | exit(1); | |
1713 | } | |
1714 | #endif | |
1715 | ||
1716 | cmd_OpenConfigFile(AFSDIR_CLIENT_CONFIG_FILE_FILEPATH); | |
1717 | cmd_SetCommandName("afsd"); | |
1718 | ||
1719 | /* call atoi on the appropriate parsed results */ | |
1720 | if (cmd_OptionAsInt(as, OPT_blocks, &cacheBlocks) == 0) | |
1721 | sawCacheBlocks = 1; | |
1722 | ||
1723 | if (cmd_OptionAsInt(as, OPT_files, &cacheFiles) == 0) | |
1724 | filesSet = 1; | |
1725 | ||
1726 | if (cmd_OptionAsString(as, OPT_rootvol, &rootVolume) == 0) | |
1727 | rootVolSet = 1; | |
1728 | ||
1729 | if (cmd_OptionAsInt(as, OPT_stat, &cacheStatEntries) == 0) | |
1730 | sawCacheStatEntries = 1; | |
1731 | ||
1732 | if (cmd_OptionPresent(as, OPT_memcache)) { | |
1733 | cacheBaseDir = NULL; | |
1734 | sawCacheBaseDir = 1; | |
1735 | cacheFlags |= AFSCALL_INIT_MEMCACHE; | |
1736 | } | |
1737 | ||
1738 | if (cmd_OptionAsString(as, OPT_cachedir, &cacheBaseDir) == 0) | |
1739 | sawCacheBaseDir = 1; | |
1740 | ||
1741 | if (cmd_OptionAsString(as, OPT_mountdir, &afsd_cacheMountDir) == 0) | |
1742 | sawCacheMountDir = 1; | |
1743 | ||
1744 | cmd_OptionAsInt(as, OPT_daemons, &nDaemons); | |
1745 | ||
1746 | afsd_verbose = cmd_OptionPresent(as, OPT_verbose); | |
1747 | ||
1748 | if (cmd_OptionPresent(as, OPT_rmtsys)) { | |
1749 | afsd_rmtsys = 1; | |
1750 | #ifdef UKERNEL | |
1751 | printf("-rmtsys not supported for UKERNEL\n"); | |
1752 | return -1; | |
1753 | #endif | |
1754 | } | |
1755 | ||
1756 | if (cmd_OptionPresent(as, OPT_debug)) { | |
1757 | afsd_debug = 1; | |
1758 | afsd_verbose = 1; | |
1759 | } | |
1760 | ||
1761 | if (cmd_OptionAsInt(as, OPT_chunksize, &chunkSize) == 0) { | |
1762 | if (chunkSize < 0 || chunkSize > 30) { | |
1763 | printf | |
1764 | ("afsd:invalid chunk size (not in range 0-30), using default\n"); | |
1765 | chunkSize = 0; | |
1766 | } | |
1767 | } | |
1768 | ||
1769 | if (cmd_OptionAsInt(as, OPT_dcache, &dCacheSize) == 0) | |
1770 | sawDCacheSize = 1; | |
1771 | ||
1772 | cmd_OptionAsInt(as, OPT_volumes, &vCacheSize); | |
1773 | ||
1774 | if (cmd_OptionPresent(as, OPT_biods)) { | |
1775 | /* -biods */ | |
1776 | #ifndef AFS_AIX32_ENV | |
1777 | printf | |
1778 | ("afsd: [-biods] currently only enabled for aix3.x VM supported systems\n"); | |
1779 | #else | |
1780 | cmd_OptionAsInt(as, OPT_biods, &nBiods); | |
1781 | #endif | |
1782 | } | |
1783 | cmd_OptionAsInt(as, OPT_prealloc, &preallocs); | |
1784 | ||
1785 | if (cmd_OptionAsString(as, OPT_confdir, &confDir) == CMD_MISSING) { | |
1786 | confDir = strdup(AFSDIR_CLIENT_ETC_DIRPATH); | |
1787 | } | |
1788 | sprintf(fullpn_CacheInfo, "%s/%s", confDir, CACHEINFOFILE); | |
1789 | ||
1790 | if (cmd_OptionPresent(as, OPT_logfile)) { | |
1791 | printf("afsd: Ignoring obsolete -logfile flag\n"); | |
1792 | } | |
1793 | ||
1794 | afsd_CloseSynch = cmd_OptionPresent(as, OPT_waitclose); | |
1795 | ||
1796 | if (cmd_OptionPresent(as, OPT_shutdown)) { | |
1797 | /* -shutdown */ | |
1798 | afs_shutdown = 1; | |
1799 | /* | |
1800 | * Cold shutdown is the default | |
1801 | */ | |
1802 | printf("afsd: Shutting down all afs processes and afs state\n"); | |
1803 | code = afsd_syscall(AFSOP_SHUTDOWN, 1); | |
1804 | if (code) { | |
1805 | printf("afsd: AFS still mounted; Not shutting down\n"); | |
1806 | exit(1); | |
1807 | } | |
1808 | exit(0); | |
1809 | } | |
1810 | ||
1811 | enable_peer_stats = cmd_OptionPresent(as, OPT_peerstats); | |
1812 | enable_process_stats = cmd_OptionPresent(as, OPT_processstats); | |
1813 | ||
1814 | if (cmd_OptionPresent(as, OPT_memallocsleep)) { | |
1815 | printf("afsd: -mem_alloc_sleep is deprecated -- ignored\n"); | |
1816 | } | |
1817 | ||
1818 | enable_afsdb = cmd_OptionPresent(as, OPT_afsdb); | |
1819 | if (cmd_OptionPresent(as, OPT_filesdir)) { | |
1820 | /* -files_per_subdir */ | |
1821 | int res; | |
1822 | cmd_OptionAsInt(as, OPT_filesdir, &res); | |
1823 | if (res < 10 || res > (1 << 30)) { | |
1824 | printf | |
1825 | ("afsd:invalid number of files per subdir, \"%s\". Ignored\n", | |
1826 | as->parms[25].items->data); | |
1827 | } else { | |
1828 | nFilesPerDir = res; | |
1829 | } | |
1830 | } | |
1831 | enable_dynroot = cmd_OptionPresent(as, OPT_dynroot); | |
1832 | ||
1833 | if (cmd_OptionPresent(as, OPT_fakestat)) { | |
1834 | enable_fakestat = 2; | |
1835 | } | |
1836 | if (cmd_OptionPresent(as, OPT_fakestatall)) { | |
1837 | enable_fakestat = 1; | |
1838 | } | |
1839 | if (cmd_OptionPresent(as, OPT_settime)) { | |
1840 | /* -settime */ | |
1841 | printf("afsd: -settime ignored\n"); | |
1842 | printf("afsd: the OpenAFS client no longer sets the system time; " | |
1843 | "please use NTP or\n"); | |
1844 | printf("afsd: another such system to synchronize client time\n"); | |
1845 | } | |
1846 | ||
1847 | enable_nomount = cmd_OptionPresent(as, OPT_nomount); | |
1848 | enable_backuptree = cmd_OptionPresent(as, OPT_backuptree); | |
1849 | enable_rxbind = cmd_OptionPresent(as, OPT_rxbind); | |
1850 | ||
1851 | /* set rx_extraPackets */ | |
1852 | if (cmd_OptionPresent(as, OPT_rxpck)) { | |
1853 | /* -rxpck */ | |
1854 | int rxpck; | |
1855 | cmd_OptionAsInt(as, OPT_rxpck, &rxpck); | |
1856 | printf("afsd: set rxpck = %d\n", rxpck); | |
1857 | code = afsd_syscall(AFSOP_SET_RXPCK, rxpck); | |
1858 | if (code) { | |
1859 | printf("afsd: failed to set rxpck\n"); | |
1860 | exit(1); | |
1861 | } | |
1862 | } | |
1863 | if (cmd_OptionPresent(as, OPT_splitcache)) { | |
1864 | char *c; | |
1865 | char *var = NULL; | |
1866 | ||
1867 | cmd_OptionAsString(as, OPT_splitcache, &var); | |
1868 | ||
1869 | if (var == NULL || ((c = strchr(var, '/')) == NULL)) | |
1870 | printf | |
1871 | ("ignoring splitcache (specify as RW/RO percentages: 60/40)\n"); | |
1872 | else { | |
1873 | ropct = atoi(c + 1); | |
1874 | *c = '\0'; | |
1875 | rwpct = atoi(var); | |
1876 | if ((rwpct != 0) && (ropct != 0) && (ropct + rwpct == 100)) { | |
1877 | /* -splitcache */ | |
1878 | enable_splitcache = 1; | |
1879 | } | |
1880 | } | |
1881 | free(var); | |
1882 | } | |
1883 | if (cmd_OptionPresent(as, OPT_nodynvcache)) { | |
1884 | #ifdef AFS_MAXVCOUNT_ENV | |
1885 | afsd_dynamic_vcaches = 0; | |
1886 | #else | |
1887 | printf("afsd: Error toggling flag, dynamically allocated vcaches not supported on your platform\n"); | |
1888 | exit(1); | |
1889 | #endif | |
1890 | } | |
1891 | #ifdef AFS_MAXVCOUNT_ENV | |
1892 | else { | |
1893 | /* -dynamic-vcaches */ | |
1894 | afsd_dynamic_vcaches = 1; | |
1895 | } | |
1896 | ||
1897 | if (afsd_verbose) | |
1898 | printf("afsd: %s dynamically allocated vcaches\n", ( afsd_dynamic_vcaches ? "enabling" : "disabling" )); | |
1899 | #endif | |
1900 | ||
1901 | cmd_OptionAsInt(as, OPT_rxmaxmtu, &rxmaxmtu); | |
1902 | ||
1903 | if (cmd_OptionPresent(as, OPT_dynrootsparse)) { | |
1904 | enable_dynroot = 2; | |
1905 | } | |
1906 | ||
1907 | cmd_OptionAsInt(as, OPT_rxmaxfrags, &rxmaxfrags); | |
1908 | if (cmd_OptionPresent(as, OPT_inumcalc)) { | |
1909 | cmd_OptionAsString(as, OPT_inumcalc, &inumcalc); | |
1910 | } | |
1911 | cmd_OptionAsInt(as, OPT_volume_ttl, &volume_ttl); | |
1912 | ||
1913 | /* parse cacheinfo file if this is a diskcache */ | |
1914 | if (ParseCacheInfoFile()) { | |
1915 | exit(1); | |
1916 | } | |
1917 | ||
1918 | return 0; | |
1919 | } | |
1920 | ||
1921 | int | |
1922 | afsd_run(void) | |
1923 | { | |
1924 | static char rn[] = "afsd"; /*Name of this routine */ | |
1925 | struct afsconf_dir *cdir; /* config dir */ | |
1926 | int lookupResult; /*Result of GetLocalCellName() */ | |
1927 | int i; | |
1928 | int code; /*Result of fork() */ | |
1929 | char *fsTypeMsg = NULL; | |
1930 | int cacheIteration; /*How many times through cache verification */ | |
1931 | int vFilesFound; /*How many data cache files were found in sweep */ | |
1932 | int currVFile; /*Current AFS cache file number passed in */ | |
1933 | ||
1934 | /* | |
1935 | * Pull out all the configuration info for the workstation's AFS cache and | |
1936 | * the cellular community we're willing to let our users see. | |
1937 | */ | |
1938 | cdir = afsconf_Open(confDir); | |
1939 | if (!cdir) { | |
1940 | printf("afsd: some file missing or bad in %s\n", confDir); | |
1941 | exit(1); | |
1942 | } | |
1943 | ||
1944 | lookupResult = | |
1945 | afsconf_GetLocalCell(cdir, LclCellName, sizeof(LclCellName)); | |
1946 | if (lookupResult) { | |
1947 | printf("%s: Can't get my home cell name! [Error is %d]\n", rn, | |
1948 | lookupResult); | |
1949 | } else { | |
1950 | if (afsd_verbose) | |
1951 | printf("%s: My home cell is '%s'\n", rn, LclCellName); | |
1952 | } | |
1953 | ||
1954 | if (!enable_nomount) { | |
1955 | if (afsd_check_mount(rn, afsd_cacheMountDir)) { | |
1956 | return -1; | |
1957 | } | |
1958 | } | |
1959 | ||
1960 | /* do some random computations in memcache case to get things to work | |
1961 | * reasonably no matter which parameters you set. | |
1962 | */ | |
1963 | if (cacheFlags & AFSCALL_INIT_MEMCACHE) { | |
1964 | /* memory cache: size described either as blocks or dcache entries, but | |
1965 | * not both. | |
1966 | */ | |
1967 | if (filesSet) { | |
1968 | fprintf(stderr, "%s: -files ignored with -memcache\n", rn); | |
1969 | } | |
1970 | if (sawDCacheSize) { | |
1971 | if (chunkSize == 0) { | |
1972 | chunkSize = 13; /* 8k default chunksize for memcache */ | |
1973 | } | |
1974 | if (sawCacheBlocks) { | |
1975 | printf | |
1976 | ("%s: can't set cache blocks and dcache size simultaneously when diskless.\n", | |
1977 | rn); | |
1978 | exit(1); | |
1979 | } | |
1980 | /* compute the cache size based on # of chunks times the chunk size */ | |
1981 | i = (1 << chunkSize); /* bytes per chunk */ | |
1982 | cacheBlocks = i * dCacheSize; | |
1983 | sawCacheBlocks = 1; /* so that ParseCacheInfoFile doesn't overwrite */ | |
1984 | } else { | |
1985 | if (chunkSize == 0) { | |
1986 | /* Try to autotune the memcache chunksize based on size | |
1987 | * of memcache. This is done on the assumption that approx | |
1988 | * 1024 chunks is suitable, it's a balance between enough | |
1989 | * chunks to be useful and ramping up nicely when using larger | |
1990 | * memcache to improve bulk read/write performance | |
1991 | */ | |
1992 | for (i = 14; | |
1993 | i <= 21 && (1 << i) / 1024 < (cacheBlocks / 1024); i++); | |
1994 | chunkSize = i - 1; | |
1995 | } | |
1996 | /* compute the dcache size from overall cache size and chunk size */ | |
1997 | if (chunkSize > 10) { | |
1998 | dCacheSize = (cacheBlocks >> (chunkSize - 10)); | |
1999 | } else if (chunkSize < 10) { | |
2000 | dCacheSize = (cacheBlocks << (10 - chunkSize)); | |
2001 | } else { | |
2002 | dCacheSize = cacheBlocks; | |
2003 | } | |
2004 | /* don't have to set sawDCacheSize here since it isn't overwritten | |
2005 | * by ParseCacheInfoFile. | |
2006 | */ | |
2007 | } | |
2008 | if (afsd_verbose) | |
2009 | printf("%s: chunkSize autotuned to %d\n", rn, chunkSize); | |
2010 | ||
2011 | /* kernel computes # of dcache entries as min of cacheFiles and | |
2012 | * dCacheSize, so we now make them equal. | |
2013 | */ | |
2014 | cacheFiles = dCacheSize; | |
2015 | } else { | |
2016 | /* Disk cache: | |
2017 | * Compute the number of cache files based on cache size, | |
2018 | * but only if -files isn't given on the command line. | |
2019 | * Don't let # files be so small as to prevent full utilization | |
2020 | * of the cache unless user has explicitly asked for it. | |
2021 | */ | |
2022 | if (chunkSize == 0) { | |
2023 | /* Set chunksize to 256kB - 1MB depending on cache size */ | |
2024 | if (cacheBlocks < 500000) { | |
2025 | chunkSize = 18; | |
2026 | } else if (cacheBlocks < 1000000) { | |
2027 | chunkSize = 19; | |
2028 | } else { | |
2029 | chunkSize = 20; | |
2030 | } | |
2031 | } | |
2032 | ||
2033 | if (!filesSet) { | |
2034 | cacheFiles = cacheBlocks / 32; /* Assume 32k avg filesize */ | |
2035 | ||
2036 | cacheFiles = max(cacheFiles, 1000); | |
2037 | ||
2038 | /* Always allow more files than chunks. Presume average V-file | |
2039 | * is ~67% of a chunk... (another guess, perhaps Honeyman will | |
2040 | * have a grad student write a paper). i is KILOBYTES. | |
2041 | */ | |
2042 | i = 1 << (chunkSize < 10 ? 0 : chunkSize - 10); | |
2043 | cacheFiles = max(cacheFiles, 1.5 * (cacheBlocks / i)); | |
2044 | ||
2045 | /* never permit more files than blocks, while leaving space for | |
2046 | * VolumeInfo and CacheItems files. VolumeInfo is usually 20K, | |
2047 | * CacheItems is 50 Bytes / file (== 1K/20) | |
2048 | */ | |
2049 | #define CACHEITMSZ (cacheFiles / 20) | |
2050 | #define VOLINFOSZ 50 /* 40kB has been seen, be conservative */ | |
2051 | #define CELLINFOSZ 4 /* Assuming disk block size is 4k ... */ | |
2052 | #define INFOSZ (VOLINFOSZ+CELLINFOSZ+CACHEITMSZ) | |
2053 | ||
2054 | /* Sanity check: If the obtained number of disk cache files | |
2055 | * is larger than the number of available (4k) disk blocks, we're | |
2056 | * doing something wrong. Fail hard so we can fix the bug instead | |
2057 | * of silently hiding it like before */ | |
2058 | ||
2059 | if (cacheFiles > (cacheBlocks - INFOSZ) / 4) { | |
2060 | fprintf(stderr, | |
2061 | "%s: ASSERT: cacheFiles %d diskblocks %d\n", | |
2062 | rn, cacheFiles, (cacheBlocks - INFOSZ) / 4); | |
2063 | exit(1); | |
2064 | } | |
2065 | if (cacheFiles < 100) | |
2066 | fprintf(stderr, "%s: WARNING: cache probably too small!\n", | |
2067 | rn); | |
2068 | ||
2069 | if (afsd_verbose) | |
2070 | printf("%s: cacheFiles autotuned to %d\n", rn, cacheFiles); | |
2071 | } | |
2072 | #if 0 | |
2073 | /* This actually needs to | |
2074 | 1) use powers of 2 | |
2075 | 2) not second-guess when a chunksize comes from the command line | |
2076 | 3) be less, um, small. 2^2?? | |
2077 | */ | |
2078 | /* Sanity check chunkSize */ | |
2079 | i = max(cacheBlocks / 1000, cacheBlocks / cacheFiles); | |
2080 | chunkSize = min(chunkSize, i); | |
2081 | chunkSize = max(chunkSize, 2); | |
2082 | if (afsd_verbose) | |
2083 | printf("%s: chunkSize autotuned to %d\n", rn, chunkSize); | |
2084 | #endif | |
2085 | ||
2086 | if (!sawDCacheSize) { | |
2087 | dCacheSize = cacheFiles / 2; | |
2088 | if (dCacheSize > 10000) { | |
2089 | dCacheSize = 10000; | |
2090 | } | |
2091 | if (dCacheSize < 2000) { | |
2092 | dCacheSize = 2000; | |
2093 | } | |
2094 | if (afsd_verbose) | |
2095 | printf("%s: dCacheSize autotuned to %d\n", rn, dCacheSize); | |
2096 | } | |
2097 | } | |
2098 | if (!sawCacheStatEntries) { | |
2099 | if (chunkSize <= 13) { | |
2100 | cacheStatEntries = dCacheSize / 4; | |
2101 | } else if (chunkSize >= 16) { | |
2102 | cacheStatEntries = dCacheSize * 1.5; | |
2103 | } else { | |
2104 | cacheStatEntries = dCacheSize; | |
2105 | } | |
2106 | if (afsd_verbose) | |
2107 | printf("%s: cacheStatEntries autotuned to %d\n", rn, | |
2108 | cacheStatEntries); | |
2109 | } | |
2110 | ||
2111 | #if !defined(AFS_CACHE_VNODE_PATH) && !defined(AFS_LINUX26_ENV) | |
2112 | /* | |
2113 | * Create and zero the inode table for the desired cache files. | |
2114 | */ | |
2115 | inode_for_V = calloc(cacheFiles, sizeof(AFSD_INO_T)); | |
2116 | if (inode_for_V == (AFSD_INO_T *) 0) { | |
2117 | printf | |
2118 | ("%s: malloc() failed for cache file inode table with %d entries.\n", | |
2119 | rn, cacheFiles); | |
2120 | exit(1); | |
2121 | } | |
2122 | if (afsd_debug) | |
2123 | printf("%s: %d inode_for_V entries at %p, %lu bytes\n", rn, | |
2124 | cacheFiles, inode_for_V, | |
2125 | (unsigned long)cacheFiles * sizeof(AFSD_INO_T)); | |
2126 | #endif | |
2127 | ||
2128 | if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) { | |
2129 | /* | |
2130 | * Set up all the pathnames we'll need for later. | |
2131 | */ | |
2132 | sprintf(fullpn_DCacheFile, "%s/%s", cacheBaseDir, DCACHEFILE); | |
2133 | sprintf(fullpn_VolInfoFile, "%s/%s", cacheBaseDir, VOLINFOFILE); | |
2134 | sprintf(fullpn_CellInfoFile, "%s/%s", cacheBaseDir, CELLINFOFILE); | |
2135 | sprintf(fullpn_VFile, "%s/", cacheBaseDir); | |
2136 | vFilePtr = fullpn_VFile + strlen(fullpn_VFile); | |
2137 | ||
2138 | fsTypeMsg = CheckCacheBaseDir(cacheBaseDir); | |
2139 | if (fsTypeMsg) { | |
2140 | #ifdef AFS_SUN5_ENV | |
2141 | printf("%s: WARNING: Cache dir check failed (%s)\n", rn, fsTypeMsg); | |
2142 | #else | |
2143 | printf("%s: ERROR: Cache dir check failed (%s)\n", rn, fsTypeMsg); | |
2144 | exit(1); | |
2145 | #endif | |
2146 | } | |
2147 | } | |
2148 | ||
2149 | /* | |
2150 | * Set up all the kernel processes needed for AFS. | |
2151 | */ | |
2152 | #ifdef mac2 | |
2153 | setpgrp(getpid(), 0); | |
2154 | #endif /* mac2 */ | |
2155 | ||
2156 | /* | |
2157 | * Set the primary cell name. | |
2158 | */ | |
2159 | afsd_syscall(AFSOP_SET_THISCELL, LclCellName); | |
2160 | ||
2161 | /* Initialize RX daemons and services */ | |
2162 | ||
2163 | /* initialize the rx random number generator from user space */ | |
2164 | { | |
2165 | /* rand-fortuna wants at least 128 bytes of seed; be generous. */ | |
2166 | unsigned char seedbuf[256]; | |
2167 | if (RAND_bytes(seedbuf, sizeof(seedbuf)) != 1) { | |
2168 | printf("SEED_ENTROPY: Error retrieving seed entropy\n"); | |
2169 | } | |
2170 | afsd_syscall(AFSOP_SEED_ENTROPY, seedbuf, sizeof(seedbuf)); | |
2171 | memset(seedbuf, 0, sizeof(seedbuf)); | |
2172 | /* parse multihomed address files */ | |
2173 | afs_uint32 addrbuf[MAXIPADDRS], maskbuf[MAXIPADDRS], | |
2174 | mtubuf[MAXIPADDRS]; | |
2175 | char reason[1024]; | |
2176 | code = afsconf_ParseNetFiles(addrbuf, maskbuf, mtubuf, MAXIPADDRS, reason, | |
2177 | AFSDIR_CLIENT_NETINFO_FILEPATH, | |
2178 | AFSDIR_CLIENT_NETRESTRICT_FILEPATH); | |
2179 | if (code > 0) { | |
2180 | if (enable_rxbind) | |
2181 | code = code | 0x80000000; | |
2182 | afsd_syscall(AFSOP_ADVISEADDR, code, addrbuf, maskbuf, mtubuf); | |
2183 | } else | |
2184 | printf("ADVISEADDR: Error in specifying interface addresses:%s\n", | |
2185 | reason); | |
2186 | } | |
2187 | ||
2188 | /* Set realtime priority for most threads to same as for biod's. */ | |
2189 | afsd_set_afsd_rtpri(); | |
2190 | ||
2191 | /* Start listener, then callback listener. Lastly, start rx event daemon. | |
2192 | * Change in ordering is so that Linux port has socket fd in listener | |
2193 | * process. | |
2194 | * preallocs are passed for both listener and callback server. Only | |
2195 | * the one which actually does the initialization uses them though. | |
2196 | */ | |
2197 | if (preallocs < cacheStatEntries + 50) | |
2198 | preallocs = cacheStatEntries + 50; | |
2199 | #ifdef RXK_LISTENER_ENV | |
2200 | if (afsd_verbose) | |
2201 | printf("%s: Forking rx listener daemon.\n", rn); | |
2202 | # ifdef AFS_SUN510_ENV | |
2203 | fork_rx_syscall_wait(rn, AFSOP_RXLISTENER_DAEMON, preallocs, | |
2204 | enable_peer_stats, enable_process_stats); | |
2205 | # else /* !AFS_SUN510_ENV */ | |
2206 | fork_rx_syscall(rn, AFSOP_RXLISTENER_DAEMON, preallocs, enable_peer_stats, | |
2207 | enable_process_stats); | |
2208 | # endif /* !AFS_SUN510_ENV */ | |
2209 | #endif | |
2210 | if (afsd_verbose) | |
2211 | printf("%s: Forking rx callback listener.\n", rn); | |
2212 | #ifndef RXK_LISTENER_ENV | |
2213 | fork_rx_syscall(rn, AFSOP_START_RXCALLBACK, preallocs, enable_peer_stats, | |
2214 | enable_process_stats); | |
2215 | #else | |
2216 | fork_syscall(rn, AFSOP_START_RXCALLBACK, preallocs, 0, 0); | |
2217 | #endif | |
2218 | #if defined(AFS_SUN5_ENV) || defined(RXK_LISTENER_ENV) || defined(RXK_UPCALL_ENV) | |
2219 | if (afsd_verbose) | |
2220 | printf("%s: Forking rxevent daemon.\n", rn); | |
2221 | fork_rx_syscall(rn, AFSOP_RXEVENT_DAEMON); | |
2222 | #endif | |
2223 | ||
2224 | if (enable_afsdb) { | |
2225 | if (afsd_verbose) | |
2226 | printf("%s: Forking AFSDB lookup handler.\n", rn); | |
2227 | afsd_fork(0, afsdb_thread, NULL); | |
2228 | } | |
2229 | code = afsd_syscall(AFSOP_BASIC_INIT, 1); | |
2230 | if (code) { | |
2231 | printf("%s: Error %d in basic initialization.\n", rn, code); | |
2232 | exit(1); | |
2233 | } | |
2234 | ||
2235 | /* | |
2236 | * Tell the kernel some basic information about the workstation's cache. | |
2237 | */ | |
2238 | if (afsd_verbose) | |
2239 | printf | |
2240 | ("%s: Calling AFSOP_CACHEINIT: %d stat cache entries, %d optimum cache files, %d blocks in the cache, flags = 0x%x, dcache entries %d\n", | |
2241 | rn, cacheStatEntries, cacheFiles, cacheBlocks, cacheFlags, | |
2242 | dCacheSize); | |
2243 | memset(&cparams, '\0', sizeof(cparams)); | |
2244 | cparams.cacheScaches = cacheStatEntries; | |
2245 | cparams.cacheFiles = cacheFiles; | |
2246 | cparams.cacheBlocks = cacheBlocks; | |
2247 | cparams.cacheDcaches = dCacheSize; | |
2248 | cparams.cacheVolumes = vCacheSize; | |
2249 | cparams.chunkSize = chunkSize; | |
2250 | cparams.setTimeFlag = 0; | |
2251 | cparams.memCacheFlag = cacheFlags; | |
2252 | cparams.dynamic_vcaches = afsd_dynamic_vcaches; | |
2253 | code = afsd_syscall(AFSOP_CACHEINIT, &cparams); | |
2254 | if (code) { | |
2255 | printf("%s: Error %d during cache init.\n", rn, code); | |
2256 | exit(1); | |
2257 | } | |
2258 | ||
2259 | /* do it before we init the cache inodes */ | |
2260 | if (enable_splitcache) { | |
2261 | afsd_syscall(AFSOP_BUCKETPCT, 1, rwpct); | |
2262 | afsd_syscall(AFSOP_BUCKETPCT, 2, ropct); | |
2263 | } | |
2264 | ||
2265 | if (afsd_CloseSynch) | |
2266 | afsd_syscall(AFSOP_CLOSEWAIT); | |
2267 | ||
2268 | /* | |
2269 | * Sweep the workstation AFS cache directory, remembering the inodes of | |
2270 | * valid files and deleting extraneous files. Keep sweeping until we | |
2271 | * have the right number of data cache files or we've swept too many | |
2272 | * times. | |
2273 | * | |
2274 | * This also creates files in the cache directory like VolumeItems and | |
2275 | * CellItems, and thus must be ran before those are sent to the kernel. | |
2276 | */ | |
2277 | if (afsd_verbose) | |
2278 | printf("%s: Sweeping workstation's AFS cache directory.\n", rn); | |
2279 | cacheIteration = 0; | |
2280 | /* Memory-cache based system doesn't need any of this */ | |
2281 | if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) { | |
2282 | do { | |
2283 | cacheIteration++; | |
2284 | if (SweepAFSCache(&vFilesFound)) { | |
2285 | printf("%s: Error on sweep %d of workstation AFS cache \ | |
2286 | directory.\n", rn, cacheIteration); | |
2287 | exit(1); | |
2288 | } | |
2289 | if (afsd_verbose) | |
2290 | printf | |
2291 | ("%s: %d out of %d data cache files found in sweep %d.\n", | |
2292 | rn, vFilesFound, cacheFiles, cacheIteration); | |
2293 | } while ((vFilesFound < cacheFiles) | |
2294 | && (cacheIteration < MAX_CACHE_LOOPS)); | |
2295 | } else if (afsd_verbose) | |
2296 | printf("%s: Using memory cache, not swept\n", rn); | |
2297 | ||
2298 | /* | |
2299 | * Pass the kernel the name of the workstation cache file holding the | |
2300 | * dcache entries. | |
2301 | */ | |
2302 | if (afsd_debug) | |
2303 | printf("%s: Calling AFSOP_CACHEINFO: dcache file is '%s'\n", rn, | |
2304 | fullpn_DCacheFile); | |
2305 | /* once again, meaningless for a memory-based cache. */ | |
2306 | if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) | |
2307 | afsd_syscall(AFSOP_CACHEINFO, fullpn_DCacheFile); | |
2308 | ||
2309 | /* | |
2310 | * Pass the kernel the name of the workstation cache file holding the | |
2311 | * cell information. | |
2312 | */ | |
2313 | if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) { | |
2314 | if (afsd_debug) | |
2315 | printf("%s: Calling AFSOP_CELLINFO: cell info file is '%s'\n", rn, | |
2316 | fullpn_CellInfoFile); | |
2317 | afsd_syscall(AFSOP_CELLINFO, fullpn_CellInfoFile); | |
2318 | } | |
2319 | ||
2320 | if (rxmaxfrags) { | |
2321 | if (afsd_verbose) | |
2322 | printf("%s: Setting rxmaxfrags in kernel = %d\n", rn, rxmaxfrags); | |
2323 | code = afsd_syscall(AFSOP_SET_RXMAXFRAGS, rxmaxfrags); | |
2324 | if (code) | |
2325 | printf("%s: Error seting rxmaxfrags\n", rn); | |
2326 | } | |
2327 | ||
2328 | if (rxmaxmtu) { | |
2329 | if (afsd_verbose) | |
2330 | printf("%s: Setting rxmaxmtu in kernel = %d\n", rn, rxmaxmtu); | |
2331 | code = afsd_syscall(AFSOP_SET_RXMAXMTU, rxmaxmtu); | |
2332 | if (code) | |
2333 | printf("%s: Error seting rxmaxmtu\n", rn); | |
2334 | } | |
2335 | ||
2336 | if (inumcalc != NULL) { | |
2337 | if (strcmp(inumcalc, "compat") == 0) { | |
2338 | if (afsd_verbose) { | |
2339 | printf("%s: Setting original inode number calculation method in kernel.\n", | |
2340 | rn); | |
2341 | } | |
2342 | code = afsd_syscall(AFSOP_SET_INUMCALC, AFS_INUMCALC_COMPAT); | |
2343 | if (code) { | |
2344 | printf("%s: Error setting inode calculation method: code=%d.\n", | |
2345 | rn, code); | |
2346 | } | |
2347 | } else if (strcmp(inumcalc, "md5") == 0) { | |
2348 | if (afsd_verbose) { | |
2349 | printf("%s: Setting md5 digest inode number calculation in kernel.\n", | |
2350 | rn); | |
2351 | } | |
2352 | code = afsd_syscall(AFSOP_SET_INUMCALC, AFS_INUMCALC_MD5); | |
2353 | if (code) { | |
2354 | printf("%s: Error setting inode calculation method: code=%d.\n", | |
2355 | rn, code); | |
2356 | } | |
2357 | } else { | |
2358 | printf("%s: Unknown value for -inumcalc: %s." | |
2359 | "Using default inode calculation method.\n", rn, inumcalc); | |
2360 | } | |
2361 | } | |
2362 | ||
2363 | if (enable_dynroot) { | |
2364 | if (afsd_verbose) | |
2365 | printf("%s: Enabling dynroot support in kernel%s.\n", rn, | |
2366 | (enable_dynroot==2)?", not showing cells.":""); | |
2367 | code = afsd_syscall(AFSOP_SET_DYNROOT, 1); | |
2368 | if (code) | |
2369 | printf("%s: Error enabling dynroot support.\n", rn); | |
2370 | } | |
2371 | ||
2372 | if (enable_fakestat) { | |
2373 | if (afsd_verbose) | |
2374 | printf("%s: Enabling fakestat support in kernel%s.\n", rn, | |
2375 | (enable_fakestat==1)?" for all mountpoints." | |
2376 | :" for crosscell mountpoints"); | |
2377 | code = afsd_syscall(AFSOP_SET_FAKESTAT, enable_fakestat); | |
2378 | if (code) | |
2379 | printf("%s: Error enabling fakestat support.\n", rn); | |
2380 | } | |
2381 | ||
2382 | if (enable_backuptree) { | |
2383 | if (afsd_verbose) | |
2384 | printf("%s: Enabling backup tree support in kernel.\n", rn); | |
2385 | code = afsd_syscall(AFSOP_SET_BACKUPTREE, enable_backuptree); | |
2386 | if (code) | |
2387 | printf("%s: Error enabling backup tree support.\n", rn); | |
2388 | } | |
2389 | ||
2390 | /* | |
2391 | * Tell the kernel about each cell in the configuration. | |
2392 | */ | |
2393 | afsconf_CellApply(cdir, ConfigCell, NULL); | |
2394 | afsconf_CellAliasApply(cdir, ConfigCellAlias, NULL); | |
2395 | ||
2396 | /* Initialize AFS daemon threads. */ | |
2397 | if (afsd_verbose) | |
2398 | printf("%s: Forking AFS daemon.\n", rn); | |
2399 | fork_syscall(rn, AFSOP_START_AFS); | |
2400 | ||
2401 | if (afsd_verbose) | |
2402 | printf("%s: Forking Check Server Daemon.\n", rn); | |
2403 | fork_syscall(rn, AFSOP_START_CS); | |
2404 | ||
2405 | if (afsd_verbose) | |
2406 | printf("%s: Forking %d background daemons.\n", rn, nDaemons); | |
2407 | #if defined(AFS_SGI_ENV) && defined(AFS_SGI_SHORTSTACK) | |
2408 | /* Add one because for sgi we always "steal" the first daemon for a | |
2409 | * different task if we only have a 4K stack. | |
2410 | */ | |
2411 | nDaemons++; | |
2412 | #endif | |
2413 | for (i = 0; i < nDaemons; i++) { | |
2414 | afsd_fork(0, daemon_thread, NULL); | |
2415 | } | |
2416 | #ifdef AFS_AIX32_ENV | |
2417 | if (!sawBiod) | |
2418 | nBiods = nDaemons * 2; | |
2419 | if (nBiods < 5) | |
2420 | nBiods = 5; | |
2421 | for (i = 0; i < nBiods; i++) { | |
2422 | fork_syscall(rn, AFSOP_START_BKG, nBiods); | |
2423 | } | |
2424 | #endif | |
2425 | ||
2426 | /* | |
2427 | * If the root volume has been explicitly set, tell the kernel. | |
2428 | */ | |
2429 | if (rootVolSet) { | |
2430 | if (afsd_verbose) | |
2431 | printf("%s: Calling AFSOP_ROOTVOLUME with '%s'\n", rn, | |
2432 | rootVolume); | |
2433 | afsd_syscall(AFSOP_ROOTVOLUME, rootVolume); | |
2434 | } | |
2435 | ||
2436 | if (volume_ttl != 0) { | |
2437 | if (afsd_verbose) | |
2438 | printf("%s: Calling AFSOP_SET_VOLUME_TTL with '%d'\n", rn, volume_ttl); | |
2439 | code = afsd_syscall(AFSOP_SET_VOLUME_TTL, volume_ttl); | |
2440 | if (code == EFAULT) { | |
2441 | if (volume_ttl < AFS_MIN_VOLUME_TTL) | |
2442 | printf("%s: Failed to set volume ttl to %d seconds; " | |
2443 | "value is too low.\n", rn, volume_ttl); | |
2444 | else if (volume_ttl > AFS_MAX_VOLUME_TTL) | |
2445 | printf("%s: Failed to set volume ttl to %d seconds; " | |
2446 | "value is too high.\n", rn, volume_ttl); | |
2447 | else | |
2448 | printf("%s: Failed to set volume ttl to %d seconds; " | |
2449 | "value is out of range.\n", rn, volume_ttl); | |
2450 | } else if (code != 0) { | |
2451 | printf("%s: Failed to set volume ttl to %d seconds; " | |
2452 | "code=%d.\n", rn, volume_ttl, code); | |
2453 | } | |
2454 | } | |
2455 | ||
2456 | /* | |
2457 | * Pass the kernel the name of the workstation cache file holding the | |
2458 | * volume information. | |
2459 | */ | |
2460 | if (afsd_debug) | |
2461 | printf("%s: Calling AFSOP_VOLUMEINFO: volume info file is '%s'\n", rn, | |
2462 | fullpn_VolInfoFile); | |
2463 | /* once again, meaningless for a memory-based cache. */ | |
2464 | if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) | |
2465 | afsd_syscall(AFSOP_VOLUMEINFO, fullpn_VolInfoFile); | |
2466 | ||
2467 | /* | |
2468 | * Give the kernel the names of the AFS files cached on the workstation's | |
2469 | * disk. | |
2470 | */ | |
2471 | if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) { | |
2472 | int nocachefile = 0; | |
2473 | if (afsd_debug) | |
2474 | printf | |
2475 | ("%s: Calling AFSOP_CACHEFILE for each of the %d files in '%s'\n", | |
2476 | rn, cacheFiles, cacheBaseDir); | |
2477 | /* ... and again ... */ | |
2478 | for (currVFile = 0; currVFile < cacheFiles; currVFile++) { | |
2479 | if (!nocachefile) { | |
2480 | sprintf(fullpn_VFile, "%s/D%d/V%d", cacheBaseDir, dir_for_V[currVFile], currVFile); | |
2481 | code = afsd_syscall(AFSOP_CACHEFILE, fullpn_VFile); | |
2482 | if (code) { | |
2483 | if (currVFile == 0) { | |
2484 | if (afsd_debug) | |
2485 | printf | |
2486 | ("%s: Calling AFSOP_CACHEINODE for each of the %d files in '%s'\n", | |
2487 | rn, cacheFiles, cacheBaseDir); | |
2488 | nocachefile = 1; | |
2489 | } else { | |
2490 | printf | |
2491 | ("%s: Error calling AFSOP_CACHEFILE for '%s'\n", | |
2492 | rn, fullpn_VFile); | |
2493 | exit(1); | |
2494 | } | |
2495 | } else { | |
2496 | continue; | |
2497 | } | |
2498 | /* fall through to setup-by-inode */ | |
2499 | } | |
2500 | #if defined(AFS_SGI62_ENV) || !(defined(AFS_LINUX26_ENV) || defined(AFS_CACHE_VNODE_PATH)) | |
2501 | afsd_syscall(AFSOP_CACHEINODE, inode_for_V[currVFile]); | |
2502 | #else | |
2503 | printf | |
2504 | ("%s: Error calling AFSOP_CACHEINODE: not configured\n", | |
2505 | rn); | |
2506 | exit(1); | |
2507 | #endif | |
2508 | } | |
2509 | } | |
2510 | /*end for */ | |
2511 | /* | |
2512 | * All the necessary info has been passed into the kernel to run an AFS | |
2513 | * system. Give the kernel our go-ahead. | |
2514 | */ | |
2515 | if (afsd_debug) | |
2516 | printf("%s: Calling AFSOP_GO with cacheSetTime = %d\n", rn, | |
2517 | 0); | |
2518 | afsd_syscall(AFSOP_GO, 0); | |
2519 | ||
2520 | /* | |
2521 | * At this point, we have finished passing the kernel all the info | |
2522 | * it needs to set up the AFS. Mount the AFS root. | |
2523 | */ | |
2524 | printf("%s: All AFS daemons started.\n", rn); | |
2525 | ||
2526 | if (afsd_verbose) | |
2527 | printf("%s: Forking trunc-cache daemon.\n", rn); | |
2528 | fork_syscall(rn, AFSOP_START_TRUNCDAEMON); | |
2529 | ||
2530 | if (!enable_nomount) { | |
2531 | afsd_mount_afs(rn, afsd_cacheMountDir); | |
2532 | } | |
2533 | ||
2534 | #ifndef UKERNEL | |
2535 | if (afsd_rmtsys) { | |
2536 | if (afsd_verbose) | |
2537 | printf("%s: Forking 'rmtsys' daemon.\n", rn); | |
2538 | afsd_fork(0, rmtsysd_thread, NULL); | |
2539 | code = afsd_syscall(AFSOP_SET_RMTSYS_FLAG, 1); | |
2540 | if (code) | |
2541 | printf("%s: Error enabling rmtsys support.\n", rn); | |
2542 | } | |
2543 | #endif /* !UKERNEL */ | |
2544 | /* | |
2545 | * Exit successfully. | |
2546 | */ | |
2547 | return 0; | |
2548 | } | |
2549 | ||
2550 | #ifndef UKERNEL | |
2551 | #include "AFS_component_version_number.c" | |
2552 | #endif | |
2553 | ||
2554 | void | |
2555 | afsd_init(void) | |
2556 | { | |
2557 | struct cmd_syndesc *ts; | |
2558 | ||
2559 | ts = cmd_CreateSyntax(NULL, NULL, NULL, 0, "start AFS"); | |
2560 | ||
2561 | /* 0 - 10 */ | |
2562 | cmd_AddParmAtOffset(ts, OPT_blocks, "-blocks", CMD_SINGLE, | |
2563 | CMD_OPTIONAL, "1024 byte blocks in cache"); | |
2564 | cmd_AddParmAtOffset(ts, OPT_files, "-files", CMD_SINGLE, | |
2565 | CMD_OPTIONAL, "files in cache"); | |
2566 | cmd_AddParmAtOffset(ts, OPT_rootvol, "-rootvol", CMD_SINGLE, | |
2567 | CMD_OPTIONAL, "name of AFS root volume"); | |
2568 | cmd_AddParmAtOffset(ts, OPT_stat, "-stat", CMD_SINGLE, | |
2569 | CMD_OPTIONAL, "number of stat entries"); | |
2570 | cmd_AddParmAtOffset(ts, OPT_memcache, "-memcache", CMD_FLAG, | |
2571 | CMD_OPTIONAL, "run diskless"); | |
2572 | cmd_AddParmAtOffset(ts, OPT_cachedir, "-cachedir", CMD_SINGLE, | |
2573 | CMD_OPTIONAL, "cache directory"); | |
2574 | cmd_AddParmAtOffset(ts, OPT_mountdir, "-mountdir", CMD_SINGLE, | |
2575 | CMD_OPTIONAL, "mount location"); | |
2576 | cmd_AddParmAtOffset(ts, OPT_daemons, "-daemons", CMD_SINGLE, | |
2577 | CMD_OPTIONAL, "number of daemons to use"); | |
2578 | cmd_AddParmAtOffset(ts, OPT_nosettime, "-nosettime", CMD_FLAG, | |
2579 | CMD_OPTIONAL, "don't set the time"); | |
2580 | cmd_AddParmAtOffset(ts, OPT_verbose, "-verbose", CMD_FLAG, | |
2581 | CMD_OPTIONAL, "display lots of information"); | |
2582 | cmd_AddParmAtOffset(ts, OPT_rmtsys, "-rmtsys", CMD_FLAG, | |
2583 | CMD_OPTIONAL, "start NFS rmtsysd program"); | |
2584 | cmd_AddParmAtOffset(ts, OPT_debug, "-debug", CMD_FLAG, | |
2585 | CMD_OPTIONAL, "display debug info"); | |
2586 | cmd_AddParmAtOffset(ts, OPT_chunksize, "-chunksize", CMD_SINGLE, | |
2587 | CMD_OPTIONAL, "log(2) of chunk size"); | |
2588 | cmd_AddParmAtOffset(ts, OPT_dcache, "-dcache", CMD_SINGLE, | |
2589 | CMD_OPTIONAL, "number of dcache entries"); | |
2590 | cmd_AddParmAtOffset(ts, OPT_volumes, "-volumes", CMD_SINGLE, | |
2591 | CMD_OPTIONAL, "number of volume entries"); | |
2592 | cmd_AddParmAtOffset(ts, OPT_biods, "-biods", CMD_SINGLE, | |
2593 | CMD_OPTIONAL, "number of bkg I/O daemons (aix vm)"); | |
2594 | cmd_AddParmAtOffset(ts, OPT_prealloc, "-prealloc", CMD_SINGLE, | |
2595 | CMD_OPTIONAL, "number of 'small' preallocated blocks"); | |
2596 | cmd_AddParmAtOffset(ts, OPT_confdir, "-confdir", CMD_SINGLE, | |
2597 | CMD_OPTIONAL, "configuration directory"); | |
2598 | cmd_AddParmAtOffset(ts, OPT_logfile, "-logfile", CMD_SINGLE, | |
2599 | CMD_OPTIONAL, "Place to keep the CM log"); | |
2600 | cmd_AddParmAtOffset(ts, OPT_waitclose, "-waitclose", CMD_FLAG, | |
2601 | CMD_OPTIONAL, "make close calls synchronous"); | |
2602 | cmd_AddParmAtOffset(ts, OPT_shutdown, "-shutdown", CMD_FLAG, | |
2603 | CMD_OPTIONAL, "Shutdown all afs state"); | |
2604 | cmd_AddParmAtOffset(ts, OPT_peerstats, "-enable_peer_stats", CMD_FLAG, | |
2605 | CMD_OPTIONAL, "Collect rpc statistics by peer"); | |
2606 | cmd_AddParmAtOffset(ts, OPT_processstats, "-enable_process_stats", | |
2607 | CMD_FLAG, CMD_OPTIONAL, "Collect rpc statistics for this process"); | |
2608 | cmd_AddParmAtOffset(ts, OPT_memallocsleep, "-mem_alloc_sleep", | |
2609 | CMD_FLAG, CMD_OPTIONAL | CMD_HIDE, | |
2610 | "Allow sleeps when allocating memory cache"); | |
2611 | cmd_AddParmAtOffset(ts, OPT_afsdb, "-afsdb", CMD_FLAG, | |
2612 | CMD_OPTIONAL, "Enable AFSDB support"); | |
2613 | cmd_AddParmAtOffset(ts, OPT_filesdir, "-files_per_subdir", CMD_SINGLE, | |
2614 | CMD_OPTIONAL, | |
2615 | "log(2) of the number of cache files per " | |
2616 | "cache subdirectory"); | |
2617 | cmd_AddParmAtOffset(ts, OPT_dynroot, "-dynroot", CMD_FLAG, | |
2618 | CMD_OPTIONAL, "Enable dynroot support"); | |
2619 | cmd_AddParmAtOffset(ts, OPT_fakestat, "-fakestat", CMD_FLAG, | |
2620 | CMD_OPTIONAL, | |
2621 | "Enable fakestat support for cross-cell mounts"); | |
2622 | cmd_AddParmAtOffset(ts, OPT_fakestatall, "-fakestat-all", CMD_FLAG, | |
2623 | CMD_OPTIONAL, | |
2624 | "Enable fakestat support for all mounts"); | |
2625 | cmd_AddParmAtOffset(ts, OPT_nomount, "-nomount", CMD_FLAG, | |
2626 | CMD_OPTIONAL, "Do not mount AFS"); | |
2627 | cmd_AddParmAtOffset(ts, OPT_backuptree, "-backuptree", CMD_FLAG, | |
2628 | CMD_OPTIONAL, | |
2629 | "Prefer backup volumes for mountpoints in backup " | |
2630 | "volumes"); | |
2631 | cmd_AddParmAtOffset(ts, OPT_rxbind, "-rxbind", CMD_FLAG, | |
2632 | CMD_OPTIONAL, | |
2633 | "Bind the Rx socket (one interface only)"); | |
2634 | cmd_AddParmAtOffset(ts, OPT_settime, "-settime", CMD_FLAG, | |
2635 | CMD_OPTIONAL, "set the time"); | |
2636 | cmd_AddParmAtOffset(ts, OPT_rxpck, "-rxpck", CMD_SINGLE, CMD_OPTIONAL, | |
2637 | "set rx_extraPackets to this value"); | |
2638 | cmd_AddParmAtOffset(ts, OPT_splitcache, "-splitcache", CMD_SINGLE, | |
2639 | CMD_OPTIONAL, | |
2640 | "Percentage RW versus RO in cache (specify as 60/40)"); | |
2641 | cmd_AddParmAtOffset(ts, OPT_nodynvcache, "-disable-dynamic-vcaches", | |
2642 | CMD_FLAG, CMD_OPTIONAL, | |
2643 | "disable stat/vcache cache growing as needed"); | |
2644 | cmd_AddParmAtOffset(ts, OPT_rxmaxmtu, "-rxmaxmtu", CMD_SINGLE, | |
2645 | CMD_OPTIONAL, "set rx max MTU to use"); | |
2646 | cmd_AddParmAtOffset(ts, OPT_dynrootsparse, "-dynroot-sparse", CMD_FLAG, | |
2647 | CMD_OPTIONAL, | |
2648 | "Enable dynroot support with minimal cell list"); | |
2649 | cmd_AddParmAtOffset(ts, OPT_rxmaxfrags, "-rxmaxfrags", CMD_SINGLE, | |
2650 | CMD_OPTIONAL, | |
2651 | "Set the maximum number of UDP fragments Rx should " | |
2652 | "send/receive per Rx packet"); | |
2653 | cmd_AddParmAtOffset(ts, OPT_inumcalc, "-inumcalc", CMD_SINGLE, CMD_OPTIONAL, | |
2654 | "Set inode number calculation method"); | |
2655 | cmd_AddParmAtOffset(ts, OPT_volume_ttl, "-volume-ttl", CMD_SINGLE, | |
2656 | CMD_OPTIONAL, | |
2657 | "Set the vldb cache timeout value in seconds."); | |
2658 | } | |
2659 | ||
2660 | /** | |
2661 | * Parse and check the command line options. | |
2662 | * | |
2663 | * @note The -shutdown command is handled in CheckOptions(). | |
2664 | */ | |
2665 | int | |
2666 | afsd_parse(int argc, char **argv) | |
2667 | { | |
2668 | struct cmd_syndesc *ts = NULL; | |
2669 | int code; | |
2670 | ||
2671 | code = cmd_Parse(argc, argv, &ts); | |
2672 | if (code) { | |
2673 | return code; | |
2674 | } | |
2675 | code = CheckOptions(ts); | |
2676 | cmd_FreeOptions(&ts); | |
2677 | return code; | |
2678 | } | |
2679 | ||
2680 | /** | |
2681 | * entry point for calling a syscall from another proc/thread. | |
2682 | * | |
2683 | * @param[in] rock a struct afsd_syscall_args* specifying what syscall to call | |
2684 | * | |
2685 | * @return unused | |
2686 | * @retval NULL always | |
2687 | */ | |
2688 | static void * | |
2689 | call_syscall_thread(void *rock) | |
2690 | { | |
2691 | struct afsd_syscall_args *args = rock; | |
2692 | int code; | |
2693 | ||
2694 | if (args->rxpri) { | |
2695 | afsd_set_rx_rtpri(); | |
2696 | } | |
2697 | ||
2698 | code = afsd_call_syscall(args); | |
2699 | if (code && args->syscall == AFSOP_START_CS) { | |
2700 | printf("%s: No check server daemon in client.\n", args->rn); | |
2701 | } | |
2702 | ||
2703 | free(args); | |
2704 | ||
2705 | return NULL; | |
2706 | } | |
2707 | ||
2708 | static void | |
2709 | afsd_syscall_populate(struct afsd_syscall_args *args, int syscall, va_list ap) | |
2710 | { | |
2711 | afsd_syscall_param_t *params; | |
2712 | ||
2713 | memset(args, 0, sizeof(struct afsd_syscall_args)); | |
2714 | ||
2715 | args->syscall = syscall; | |
2716 | params = args->params; | |
2717 | ||
2718 | switch (syscall) { | |
2719 | case AFSOP_RXEVENT_DAEMON: | |
2720 | case AFSOP_CLOSEWAIT: | |
2721 | case AFSOP_START_AFS: | |
2722 | case AFSOP_START_CS: | |
2723 | case AFSOP_START_TRUNCDAEMON: | |
2724 | break; | |
2725 | case AFSOP_START_BKG: | |
2726 | case AFSOP_SHUTDOWN: | |
2727 | case AFSOP_SET_RXPCK: | |
2728 | case AFSOP_BASIC_INIT: | |
2729 | case AFSOP_SET_RXMAXFRAGS: | |
2730 | case AFSOP_SET_RXMAXMTU: | |
2731 | case AFSOP_SET_DYNROOT: | |
2732 | case AFSOP_SET_FAKESTAT: | |
2733 | case AFSOP_SET_BACKUPTREE: | |
2734 | case AFSOP_BUCKETPCT: | |
2735 | case AFSOP_GO: | |
2736 | case AFSOP_SET_RMTSYS_FLAG: | |
2737 | case AFSOP_SET_INUMCALC: | |
2738 | case AFSOP_SET_VOLUME_TTL: | |
2739 | params[0] = CAST_SYSCALL_PARAM((va_arg(ap, int))); | |
2740 | break; | |
2741 | case AFSOP_SET_THISCELL: | |
2742 | case AFSOP_ROOTVOLUME: | |
2743 | case AFSOP_VOLUMEINFO: | |
2744 | case AFSOP_CACHEFILE: | |
2745 | case AFSOP_CACHEINFO: | |
2746 | case AFSOP_CACHEINIT: | |
2747 | case AFSOP_CELLINFO: | |
2748 | params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *))); | |
2749 | break; | |
2750 | case AFSOP_ADDCELLALIAS: | |
2751 | params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *))); | |
2752 | params[1] = CAST_SYSCALL_PARAM((va_arg(ap, void *))); | |
2753 | break; | |
2754 | case AFSOP_AFSDB_HANDLER: | |
2755 | params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *))); | |
2756 | params[1] = CAST_SYSCALL_PARAM((va_arg(ap, void *))); | |
2757 | params[2] = CAST_SYSCALL_PARAM((va_arg(ap, int))); | |
2758 | break; | |
2759 | case AFSOP_BKG_HANDLER: | |
2760 | params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *))); | |
2761 | params[1] = CAST_SYSCALL_PARAM((va_arg(ap, void *))); | |
2762 | params[2] = CAST_SYSCALL_PARAM((va_arg(ap, void *))); | |
2763 | break; | |
2764 | case AFSOP_RXLISTENER_DAEMON: | |
2765 | case AFSOP_START_RXCALLBACK: | |
2766 | params[0] = CAST_SYSCALL_PARAM((va_arg(ap, int))); | |
2767 | params[1] = CAST_SYSCALL_PARAM((va_arg(ap, int))); | |
2768 | params[2] = CAST_SYSCALL_PARAM((va_arg(ap, int))); | |
2769 | break; | |
2770 | case AFSOP_ADVISEADDR: | |
2771 | params[0] = CAST_SYSCALL_PARAM((va_arg(ap, int))); | |
2772 | params[1] = CAST_SYSCALL_PARAM((va_arg(ap, void *))); | |
2773 | params[2] = CAST_SYSCALL_PARAM((va_arg(ap, void *))); | |
2774 | params[3] = CAST_SYSCALL_PARAM((va_arg(ap, void *))); | |
2775 | break; | |
2776 | case AFSOP_ADDCELL2: | |
2777 | params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *))); | |
2778 | params[1] = CAST_SYSCALL_PARAM((va_arg(ap, void *))); | |
2779 | params[2] = CAST_SYSCALL_PARAM((va_arg(ap, afs_int32))); | |
2780 | params[3] = CAST_SYSCALL_PARAM((va_arg(ap, void *))); | |
2781 | break; | |
2782 | case AFSOP_CACHEINODE: | |
2783 | #if defined AFS_SGI62_ENV | |
2784 | { | |
2785 | afs_int64 tmp = va_arg(ap, afs_int64); | |
2786 | params[0] = CAST_SYSCALL_PARAM((afs_uint32)(tmp >> 32)); | |
2787 | params[1] = CAST_SYSCALL_PARAM((afs_uint32)(tmp & 0xffffffff)); | |
2788 | } | |
2789 | #else | |
2790 | params[0] = CAST_SYSCALL_PARAM((va_arg(ap, afs_uint32))); | |
2791 | #endif | |
2792 | break; | |
2793 | case AFSOP_SEED_ENTROPY: | |
2794 | params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *))); | |
2795 | params[1] = CAST_SYSCALL_PARAM((va_arg(ap, afs_uint32))); | |
2796 | break; | |
2797 | default: | |
2798 | printf("Unknown syscall enountered: %d\n", syscall); | |
2799 | opr_Assert(0); | |
2800 | } | |
2801 | } | |
2802 | ||
2803 | /** | |
2804 | * common code for calling a syscall in another proc/thread. | |
2805 | * | |
2806 | * @param[in] rx 1 if this is a thread for RX stuff, 0 otherwise | |
2807 | * @param[in] wait 1 if we should wait for the new proc/thread to finish, 0 to | |
2808 | * let it run in the background | |
2809 | * @param[in] rn the name of the running program | |
2810 | * @param[in] syscall syscall to run | |
2811 | */ | |
2812 | static void | |
2813 | fork_syscall_impl(int rx, int wait, const char *rn, int syscall, va_list ap) | |
2814 | { | |
2815 | struct afsd_syscall_args *args; | |
2816 | ||
2817 | args = malloc(sizeof(*args)); | |
2818 | afsd_syscall_populate(args, syscall, ap); | |
2819 | args->rxpri = rx; | |
2820 | args->rn = rn; | |
2821 | ||
2822 | afsd_fork(wait, call_syscall_thread, args); | |
2823 | } | |
2824 | ||
2825 | /** | |
2826 | * call a syscall in another process or thread. | |
2827 | */ | |
2828 | static void | |
2829 | fork_syscall(const char *rn, int syscall, ...) | |
2830 | { | |
2831 | va_list ap; | |
2832 | ||
2833 | va_start(ap, syscall); | |
2834 | fork_syscall_impl(0, 0, rn, syscall, ap); | |
2835 | va_end(ap); | |
2836 | } | |
2837 | ||
2838 | /** | |
2839 | * call a syscall in another process or thread, and give it RX priority. | |
2840 | */ | |
2841 | static void | |
2842 | fork_rx_syscall(const char *rn, int syscall, ...) | |
2843 | { | |
2844 | va_list ap; | |
2845 | ||
2846 | va_start(ap, syscall); | |
2847 | fork_syscall_impl(1, 0, rn, syscall, ap); | |
2848 | va_end(ap); | |
2849 | } | |
2850 | ||
2851 | #if defined(AFS_SUN510_ENV) && defined(RXK_LISTENER_ENV) | |
2852 | /** | |
2853 | * call a syscall in another process or thread, give it RX priority, and wait | |
2854 | * for it to finish before returning. | |
2855 | */ | |
2856 | static void | |
2857 | fork_rx_syscall_wait(const char *rn, int syscall, ...) | |
2858 | { | |
2859 | va_list ap; | |
2860 | ||
2861 | va_start(ap, syscall); | |
2862 | fork_syscall_impl(1, 1, rn, syscall, ap); | |
2863 | va_end(ap); | |
2864 | } | |
2865 | #endif /* AFS_SUN510_ENV && RXK_LISTENER_ENV */ | |
2866 | ||
2867 | static int | |
2868 | afsd_syscall(int syscall, ...) | |
2869 | { | |
2870 | va_list ap; | |
2871 | struct afsd_syscall_args args; | |
2872 | ||
2873 | va_start(ap, syscall); | |
2874 | afsd_syscall_populate(&args, syscall, ap); | |
2875 | va_end(ap); | |
2876 | ||
2877 | return afsd_call_syscall(&args); | |
2878 | } |