3 * Copyright 2000, International Business Machines Corporation and others.
6 * This software has been released under the terms of the IBM Public
7 * License. For details, see the LICENSE file in the top-level source
8 * directory or online at http://www.openafs.org/dl/license10.html
12 * User space client specific interface glue
15 #include <afsconfig.h>
16 #include "afs/param.h"
20 #include "afs/sysincludes.h" /* Standard vendor system headers */
23 #include "afsincludes.h" /* Afs-based standard headers */
24 #include "afs_usrops.h"
25 #include "afs/afs_stats.h"
27 #include "afs/cellconfig.h"
29 #include "afs/kauth.h"
30 #include "afs/kautils.h"
31 #include "afs/afsutil.h"
32 #include "rx/rx_globals.h"
38 #define CACHEINFOFILE "cacheinfo"
39 #define AFSLOGFILE "AFSLog"
40 #define DCACHEFILE "CacheItems"
41 #define VOLINFOFILE "VolumeItems"
42 #define CELLINFOFILE "CellItems"
46 #define MIN(A,B) ((A)<(B)?(A):(B))
49 #define MAX(A,B) ((A)>(B)?(A):(B))
52 extern int cacheDiskType;
54 char afs_LclCellName[64];
56 struct usr_vnode *afs_FileTable[MAX_OSI_FILES];
57 int afs_FileFlags[MAX_OSI_FILES];
58 off_t afs_FileOffsets[MAX_OSI_FILES];
60 #define MAX_CACHE_LOOPS 4
62 struct usr_vfs afs_RootVfs;
63 struct usr_vnode *afs_RootVnode = NULL;
64 struct usr_vnode *afs_CurrentDir = NULL;
66 afs_int32 cacheBlocks; /* Num blocks in cache */
67 afs_int32 cacheFiles = 1000; /* Num files in workstation cache */
68 afs_int32 cacheStatEntries = 300; /* Num of stat cache entries */
69 char cacheBaseDir[1024]; /* AFS cache directory */
70 char confDir[1024]; /* AFS configuration directory */
71 char afs_mountDir[1024]; /* AFS mount point */
72 int afs_mountDirLen; /* strlen of AFS mount point */
73 char fullpn_DCacheFile[1024]; /* Full pathname of DCACHEFILE */
74 char fullpn_VolInfoFile[1024]; /* Full pathname of VOLINFOFILE */
75 char fullpn_CellInfoFile[1024]; /* Full pathname of CELLINFOFILE */
76 char fullpn_AFSLogFile[1024]; /* Full pathname of AFSLOGFILE */
77 char fullpn_CacheInfo[1024]; /* Full pathname of CACHEINFO */
78 char fullpn_VFile[1024]; /* Full pathname of data cache files */
79 char *vFileNumber; /* Ptr to number in file pathname */
80 char rootVolume[64] = "root.afs"; /* AFS root volume name */
81 afs_int32 isHomeCell; /* Is current cell info for home cell */
82 int createAndTrunc = O_CREAT | O_TRUNC; /* Create & truncate on open */
83 int ownerRWmode = 0600; /* Read/write OK by owner */
84 static int nDaemons = 2; /* Number of background daemons */
85 static int chunkSize = 0; /* 2^chunkSize bytes per chunk */
86 static int dCacheSize = 300; /* # of dcache entries */
87 static int vCacheSize = 50; /* # of volume cache entries */
88 static int cacheFlags = 0; /* Flags to cache manager */
89 static int preallocs = 400; /* Def # of allocated memory blocks */
90 int afsd_verbose = 0; /* Are we being chatty? */
91 int afsd_debug = 0; /* Are we printing debugging info? */
92 int afsd_CloseSynch = 0; /* Are closes synchronous or not? */
94 #define AFSD_INO_T afs_uint32
95 char **pathname_for_V; /* Array of cache file pathnames */
96 int missing_DCacheFile = 1; /* Is the DCACHEFILE missing? */
97 int missing_VolInfoFile = 1; /* Is the VOLINFOFILE missing? */
98 int missing_CellInfoFile = 1;
99 struct afs_cacheParams cparams; /* params passed to cache manager */
100 struct afsconf_dir *afs_cdir; /* config dir */
102 int afs_bufferpages = 100;
103 int usr_udpcksum = 0;
105 usr_key_t afs_global_u_key;
107 struct usr_proc *afs_global_procp = NULL;
108 struct usr_ucred *afs_global_ucredp = NULL;
109 struct usr_sysent usr_sysent[200];
111 #ifdef AFS_USR_OSF_ENV
113 #else /* AFS_USR_OSF_ENV */
115 #endif /* AFS_USR_OSF_ENV */
117 struct usr_ucred afs_osi_cred, *afs_osi_credp;
118 usr_mutex_t afs_global_lock;
119 usr_thread_t afs_global_owner;
120 usr_mutex_t rx_global_lock;
121 usr_thread_t rx_global_owner;
122 usr_mutex_t osi_inode_lock;
123 usr_mutex_t osi_waitq_lock;
124 usr_mutex_t osi_authenticate_lock;
126 afs_lock_t osi_flplock;
127 afs_lock_t osi_fsplock;
130 #ifndef NETSCAPE_NSAPI
133 * Mutex and condition variable used to implement sleep
135 pthread_mutex_t usr_sleep_mutex;
136 pthread_cond_t usr_sleep_cond;
138 #endif /* !NETSCAPE_NSAPI */
140 int call_syscall(long, long, long, long, long, long);
141 int fork_syscall(long, long, long, long, long, long);
145 * Hash table mapping addresses onto wait structures for
146 * osi_Sleep/osi_Wakeup and osi_Wait/osi_Wakeup
148 typedef struct osi_wait {
152 struct osi_wait *next;
153 struct osi_wait *prev;
155 struct osi_wait *timedNext;
156 struct osi_wait *timedPrev;
160 * Head of the linked list of available waitq structures.
162 osi_wait_t *osi_waithash_avail;
165 * List of timed waits, NSAPI does not provide a cond_timed
166 * wait, so we need to keep track of the timed waits ourselves and
167 * periodically check for expirations
169 osi_wait_t *osi_timedwait_head;
170 osi_wait_t *osi_timedwait_tail;
175 } osi_waithash_table[OSI_WAITHASH_SIZE];
178 * Never call afs_brelse
181 ufs_brelse(struct usr_vnode *vp, struct usr_buf *bp)
188 * I am not sure what to do with these, they assert for now
191 iodone(struct usr_buf *bp)
205 * Every user is a super user
208 afs_osi_suser(void *credp)
214 afs_suser(void *credp)
220 * These are no-ops in user space
224 afs_osi_SetTime(osi_timeval_t * atv)
230 * xflock should never fall through, the only files we know
231 * about are AFS files
241 * ioctl should never fall through, the only files we know
242 * about are AFS files
252 * We do not support the inode related system calls
255 afs_syscall_icreate(long a, long b, long c, long d, long e, long f)
262 afs_syscall_iincdec(int dev, int inode, int inode_p1, int amount)
269 afs_syscall_iopen(int dev, int inode, int usrmod)
276 afs_syscall_ireadwrite(void)
283 * these routines are referenced in the vfsops structure, but
284 * should never get called
315 * uiomove copies data between kernel buffers and uio buffers
318 usr_uiomove(char *kbuf, int n, int rw, struct usr_uio *uio)
325 nio = uio->uio_iovcnt;
335 while (nio > 0 && n > 0) {
336 len = MIN(n, iovp->iov_len);
337 if (rw == UIO_READ) {
338 memcpy(iovp->iov_base, ptr, len);
340 memcpy(ptr, iovp->iov_base, len);
344 uio->uio_resid -= len;
345 uio->uio_offset += len;
346 iovp->iov_base = (char *)(iovp->iov_base) + len;
347 iovp->iov_len -= len;
358 * routines to manage user credentials
361 usr_crcopy(struct usr_ucred *credp)
363 struct usr_ucred *newcredp;
365 newcredp = (struct usr_ucred *)afs_osi_Alloc(sizeof(struct usr_ucred));
367 newcredp->cr_ref = 1;
374 struct usr_ucred *newcredp;
376 newcredp = (struct usr_ucred *)afs_osi_Alloc(sizeof(struct usr_ucred));
377 newcredp->cr_ref = 1;
382 usr_crfree(struct usr_ucred *credp)
385 if (credp->cr_ref == 0) {
386 afs_osi_Free((char *)credp, sizeof(struct usr_ucred));
392 usr_crhold(struct usr_ucred *credp)
399 usr_vattr_null(struct usr_vattr *vap)
404 n = sizeof(struct usr_vattr);
412 * Initialize the thread specific data used to simulate the
413 * kernel environment for each thread. The user structure
414 * is stored in the thread specific data.
417 uafs_InitThread(void)
420 struct usr_user *uptr;
423 * initialize the thread specific user structure. Use malloc to
424 * allocate the data block, so pthread_finish can free the buffer
425 * when this thread terminates.
428 (struct usr_user *)malloc(sizeof(struct usr_user) +
429 sizeof(struct usr_ucred));
430 usr_assert(uptr != NULL);
433 uptr->u_procp = afs_global_procp;
434 uptr->u_cred = (struct usr_ucred *)(uptr + 1);
435 *uptr->u_cred = *afs_global_ucredp;
436 st = usr_setspecific(afs_global_u_key, (void *)uptr);
441 * routine to get the user structure from the thread specific data.
442 * this routine is used to implement the global 'u' structure. Initializes
443 * the thread if needed.
446 get_user_struct(void)
448 struct usr_user *uptr;
450 st = usr_getspecific(afs_global_u_key, (void **)&uptr);
454 st = usr_getspecific(afs_global_u_key, (void **)&uptr);
456 usr_assert(uptr != NULL);
462 * Hash an address for the waithash table
464 #define WAITHASH(X) \
465 (((long)(X)^((long)(X)>>4)^((long)(X)<<4))&(OSI_WAITHASH_SIZE-1))
471 afs_osi_Sleep(void *x)
475 int glockOwner = ISAFS_GLOCK();
477 usr_mutex_lock(&osi_waitq_lock);
482 if (osi_waithash_avail == NULL) {
483 waitp = (osi_wait_t *) afs_osi_Alloc(sizeof(osi_wait_t));
484 usr_cond_init(&waitp->cond);
486 waitp = osi_waithash_avail;
487 osi_waithash_avail = osi_waithash_avail->next;
491 DLL_INSERT_TAIL(waitp, osi_waithash_table[index].head,
492 osi_waithash_table[index].tail, next, prev);
493 waitp->expiration = 0;
494 waitp->timedNext = NULL;
495 waitp->timedPrev = NULL;
496 while (waitp->flag == 0) {
497 usr_cond_wait(&waitp->cond, &osi_waitq_lock);
499 DLL_DELETE(waitp, osi_waithash_table[index].head,
500 osi_waithash_table[index].tail, next, prev);
501 waitp->next = osi_waithash_avail;
502 osi_waithash_avail = waitp;
503 usr_mutex_unlock(&osi_waitq_lock);
510 afs_osi_SleepSig(void *x)
517 afs_osi_Wakeup(void *x)
523 usr_mutex_lock(&osi_waitq_lock);
524 waitp = osi_waithash_table[index].head;
526 if (waitp->addr == x && waitp->flag == 0) {
528 usr_cond_signal(&waitp->cond);
532 usr_mutex_unlock(&osi_waitq_lock);
537 afs_osi_Wait(afs_int32 msec, struct afs_osi_WaitHandle *handle, int intok)
543 int glockOwner = ISAFS_GLOCK();
545 tv.tv_sec = msec / 1000;
546 tv.tv_nsec = (msec % 1000) * 1000000;
547 if (handle == NULL) {
551 usr_thread_sleep(&tv);
557 usr_mutex_lock(&osi_waitq_lock);
561 index = WAITHASH((caddr_t) handle);
562 if (osi_waithash_avail == NULL) {
563 waitp = (osi_wait_t *) afs_osi_Alloc(sizeof(osi_wait_t));
564 usr_cond_init(&waitp->cond);
566 waitp = osi_waithash_avail;
567 osi_waithash_avail = osi_waithash_avail->next;
569 waitp->addr = (caddr_t) handle;
571 DLL_INSERT_TAIL(waitp, osi_waithash_table[index].head,
572 osi_waithash_table[index].tail, next, prev);
573 tv.tv_sec += time(NULL);
574 waitp->expiration = tv.tv_sec + ((tv.tv_nsec == 0) ? 0 : 1);
575 DLL_INSERT_TAIL(waitp, osi_timedwait_head, osi_timedwait_tail,
576 timedNext, timedPrev);
577 usr_cond_wait(&waitp->cond, &osi_waitq_lock);
583 DLL_DELETE(waitp, osi_waithash_table[index].head,
584 osi_waithash_table[index].tail, next, prev);
585 DLL_DELETE(waitp, osi_timedwait_head, osi_timedwait_tail, timedNext,
587 waitp->next = osi_waithash_avail;
588 osi_waithash_avail = waitp;
589 usr_mutex_unlock(&osi_waitq_lock);
598 afs_osi_CancelWait(struct afs_osi_WaitHandle *handle)
600 afs_osi_Wakeup(handle);
604 * Netscape NSAPI doesn't have a cond_timed_wait, so we need
605 * to explicitly signal cond_timed_waits when their timers expire
608 afs_osi_CheckTimedWaits(void)
613 curTime = time(NULL);
614 usr_mutex_lock(&osi_waitq_lock);
615 waitp = osi_timedwait_head;
616 while (waitp != NULL) {
617 usr_assert(waitp->expiration != 0);
618 if (waitp->expiration <= curTime) {
620 usr_cond_signal(&waitp->cond);
622 waitp = waitp->timedNext;
624 usr_mutex_unlock(&osi_waitq_lock);
629 * I-node numbers are indeces into a table containing a filename
630 * i-node structure and a vnode structure. When we create an i-node,
631 * we copy the name into the array and initialize enough of the fields
632 * in the inode and vnode structures to get the client to work.
635 struct usr_inode i_node;
638 osi_file_table_t *osi_file_table;
640 int max_osi_files = 0;
643 * Allocate a slot in the file table if there is not one there already,
644 * copy in the file name and kludge up the vnode and inode structures
647 lookupname(char *fnamep, int segflg, int followlink,
648 struct usr_vnode **compvpp)
652 struct usr_inode *ip;
653 struct usr_vnode *vp;
655 /*usr_assert(followlink == 0); */
658 * Assume relative pathnames refer to files in AFS
660 if (*fnamep != '/' || uafs_afsPathName(fnamep) != NULL) {
662 code = uafs_LookupName(fnamep, afs_CurrentDir, compvpp, 0, 0);
667 usr_mutex_lock(&osi_inode_lock);
669 for (i = 0; i < n_osi_files; i++) {
670 if (strcmp(fnamep, osi_file_table[i].name) == 0) {
671 *compvpp = &osi_file_table[i].i_node.i_vnode;
672 (*compvpp)->v_count++;
673 usr_mutex_unlock(&osi_inode_lock);
678 if (n_osi_files == max_osi_files) {
679 usr_mutex_unlock(&osi_inode_lock);
683 osi_file_table[n_osi_files].name = afs_osi_Alloc(strlen(fnamep) + 1);
684 usr_assert(osi_file_table[n_osi_files].name != NULL);
685 strcpy(osi_file_table[n_osi_files].name, fnamep);
686 ip = &osi_file_table[i].i_node;
688 vp->v_data = (caddr_t) ip;
691 ip->i_number = n_osi_files;
693 usr_mutex_unlock(&osi_inode_lock);
699 * open a file given its i-node number
702 osi_UFSOpen(afs_dcache_id_t *ino)
710 if (ino->ufs > n_osi_files) {
716 fp = (struct osi_file *)afs_osi_Alloc(sizeof(struct osi_file));
717 usr_assert(fp != NULL);
718 fp->fd = open(osi_file_table[ino->ufs - 1].name, O_RDWR | O_CREAT, 0);
721 afs_osi_Free((char *)fp, sizeof(struct osi_file));
725 rc = fstat(fp->fd, &st);
728 afs_osi_Free((void *)fp, sizeof(struct osi_file));
732 fp->size = st.st_size;
734 fp->vnode = (struct usr_vnode *)fp;
741 osi_UFSClose(struct osi_file *fp)
751 afs_osi_Free((void *)fp, sizeof(struct osi_file));
755 afs_osi_Free((void *)fp, sizeof(struct osi_file));
761 osi_UFSTruncate(struct osi_file *fp, afs_int32 len)
768 rc = ftruncate(fp->fd, len);
780 afs_osi_Read(struct osi_file *fp, int offset, void *buf, afs_int32 len)
789 rc = lseek(fp->fd, offset, SEEK_SET);
791 rc = lseek(fp->fd, fp->offset, SEEK_SET);
799 ret = read(fp->fd, buf, len);
806 rc = fstat(fp->fd, &st);
812 fp->size = st.st_size;
818 afs_osi_Write(struct osi_file *fp, afs_int32 offset, void *buf, afs_int32 len)
827 rc = lseek(fp->fd, offset, SEEK_SET);
829 rc = lseek(fp->fd, fp->offset, SEEK_SET);
837 ret = write(fp->fd, buf, len);
844 rc = fstat(fp->fd, &st);
850 fp->size = st.st_size;
856 afs_osi_Stat(struct osi_file *fp, struct osi_stat *stp)
862 rc = fstat(fp->fd, &st);
868 stp->size = st.st_size;
869 stp->mtime = st.st_mtime;
870 stp->atime = st.st_atime;
879 afs_osi_VOP_RDWR(struct usr_vnode *vnodeP, struct usr_uio *uioP, int rw,
880 int flags, struct usr_ucred *credP)
883 struct osi_file *fp = (struct osi_file *)vnodeP;
886 * We don't support readv/writev.
888 usr_assert(uioP->uio_iovcnt == 1);
889 usr_assert(uioP->uio_resid == uioP->uio_iov[0].iov_len);
891 if (rw == UIO_WRITE) {
892 usr_assert(uioP->uio_fmode == FWRITE);
893 rc = afs_osi_Write(fp, uioP->uio_offset, uioP->uio_iov[0].iov_base,
894 uioP->uio_iov[0].iov_len);
896 usr_assert(uioP->uio_fmode == FREAD);
897 rc = afs_osi_Read(fp, uioP->uio_offset, uioP->uio_iov[0].iov_base,
898 uioP->uio_iov[0].iov_len);
904 uioP->uio_resid -= rc;
905 uioP->uio_offset += rc;
906 uioP->uio_iov[0].iov_base = (char *)(uioP->uio_iov[0].iov_base) + rc;
907 uioP->uio_iov[0].iov_len -= rc;
912 afs_osi_Alloc(size_t size)
918 afs_osi_Free(void *ptr, size_t size)
924 afs_osi_FreeStr(char *ptr)
930 osi_AllocLargeSpace(size_t size)
932 AFS_STATCNT(osi_AllocLargeSpace);
933 return afs_osi_Alloc(size);
937 osi_FreeLargeSpace(void *ptr)
939 AFS_STATCNT(osi_FreeLargeSpace);
940 afs_osi_Free(ptr, 0);
944 osi_AllocSmallSpace(size_t size)
946 AFS_STATCNT(osi_AllocSmallSpace);
947 return afs_osi_Alloc(size);
951 osi_FreeSmallSpace(void *ptr)
953 AFS_STATCNT(osi_FreeSmallSpace);
954 afs_osi_Free(ptr, 0);
960 AFS_STATCNT(shutdown_osi);
965 shutdown_osinet(void)
967 AFS_STATCNT(shutdown_osinet);
972 shutdown_osifile(void)
974 AFS_STATCNT(shutdown_osifile);
979 afs_nfsclient_init(void)
984 shutdown_nfsclnt(void)
990 afs_osi_Invisible(void)
996 afs_osi_Visible(void)
1002 osi_GetTime(struct timeval *tv)
1004 gettimeofday(tv, NULL);
1009 osi_SetTime(struct timeval *tv)
1015 osi_Active(struct vcache *avc)
1017 AFS_STATCNT(osi_Active);
1024 afs_osi_MapStrategy(int (*aproc) (struct usr_buf *), struct usr_buf *bp)
1026 afs_int32 returnCode;
1027 returnCode = (*aproc) (bp);
1032 osi_FlushPages(register struct vcache *avc, afs_ucred_t *credp)
1034 ObtainSharedLock(&avc->lock, 555);
1035 if ((hcmp((avc->f.m.DataVersion), (avc->mapDV)) <= 0)
1036 || ((avc->execsOrWriters > 0) && afs_DirtyPages(avc))) {
1037 ReleaseSharedLock(&avc->lock);
1040 UpgradeSToWLock(&avc->lock, 565);
1041 hset(avc->mapDV, avc->f.m.DataVersion);
1042 ReleaseWriteLock(&avc->lock);
1047 osi_FlushText_really(register struct vcache *vp)
1049 if (hcmp(vp->f.m.DataVersion, vp->flushDV) > 0) {
1050 hset(vp->flushDV, vp->f.m.DataVersion);
1056 osi_SyncVM(struct vcache *avc)
1062 osi_ReleaseVM(struct vcache *avc, int len, struct usr_ucred *credp)
1073 * Allocate the table used to implement psuedo-inodes.
1075 max_osi_files = cacheFiles + 100;
1076 osi_file_table = (osi_file_table_t *)
1077 afs_osi_Alloc(max_osi_files * sizeof(osi_file_table_t));
1078 usr_assert(osi_file_table != NULL);
1080 #ifndef NETSCAPE_NSAPI
1082 * Initialize the mutex and condition variable used to implement
1085 pthread_mutex_init(&usr_sleep_mutex, NULL);
1086 pthread_cond_init(&usr_sleep_cond, NULL);
1087 #endif /* !NETSCAPE_NSAPI */
1090 * Initialize the hash table used for sleep/wakeup
1092 for (i = 0; i < OSI_WAITHASH_SIZE; i++) {
1093 DLL_INIT_LIST(osi_waithash_table[i].head, osi_waithash_table[i].tail);
1095 DLL_INIT_LIST(osi_timedwait_head, osi_timedwait_tail);
1096 osi_waithash_avail = NULL;
1099 * Initialize the AFS file table
1101 for (i = 0; i < MAX_OSI_FILES; i++) {
1102 afs_FileTable[i] = NULL;
1106 * Initialize the global locks
1108 usr_mutex_init(&afs_global_lock);
1109 usr_mutex_init(&rx_global_lock);
1110 usr_mutex_init(&osi_inode_lock);
1111 usr_mutex_init(&osi_waitq_lock);
1112 usr_mutex_init(&osi_authenticate_lock);
1115 * Initialize the AFS OSI credentials
1117 afs_osi_cred = *afs_global_ucredp;
1118 afs_osi_credp = &afs_osi_cred;
1121 /* ParseArgs is now obsolete, being handled by cmd */
1123 /*---------------------------------------------------------------------
1127 * Given the final component of a filename expected to be a data cache file,
1128 * return the integer corresponding to the file. Note: we reject names that
1129 * are not a ``V'' followed by an integer. We also reject those names having
1130 * the right format but lying outside the range [0..cacheFiles-1].
1133 * fname : Char ptr to the filename to parse.
1136 * >= 0 iff the file is really a data cache file numbered from 0 to cacheFiles-1, or
1140 * Nothing interesting.
1144 *------------------------------------------------------------------------*/
1147 GetVFileNumber(char *fname)
1149 int computedVNumber; /*The computed file number we return */
1150 int filenameLen; /*Number of chars in filename */
1151 int currDigit; /*Current digit being processed */
1154 * The filename must have at least two characters, the first of which must be a ``V''
1155 * and the second of which cannot be a zero unless the file is exactly two chars long.
1157 filenameLen = strlen(fname);
1158 if (filenameLen < 2)
1160 if (fname[0] != 'V')
1162 if ((filenameLen > 2) && (fname[1] == '0'))
1166 * Scan through the characters in the given filename, failing immediately if a non-digit
1169 for (currDigit = 1; currDigit < filenameLen; currDigit++)
1170 if (isdigit(fname[currDigit]) == 0)
1174 * All relevant characters are digits. Pull out the decimal number they represent.
1175 * Reject it if it's out of range, otherwise return it.
1177 computedVNumber = atoi(++fname);
1178 if (computedVNumber < cacheFiles)
1179 return (computedVNumber);
1184 /*---------------------------------------------------------------------
1188 * Given a full pathname for a file we need to create for the workstation AFS
1189 * cache, go ahead and create the file.
1192 * fname : Full pathname of file to create.
1195 * 0 iff the file was created,
1199 * The given cache file has been found to be missing.
1203 *------------------------------------------------------------------------*/
1206 CreateCacheFile(char *fname)
1208 static char rn[] = "CreateCacheFile"; /*Routine name */
1209 int cfd; /*File descriptor to AFS cache file */
1210 int closeResult; /*Result of close() */
1213 printf("%s: Creating cache file '%s'\n", rn, fname);
1214 cfd = open(fname, createAndTrunc, ownerRWmode);
1216 printf("%s: Can't create '%s', error return is %d (%d)\n", rn, fname,
1220 closeResult = close(cfd);
1223 ("%s: Can't close newly-created AFS cache file '%s' (code %d)\n",
1231 /*---------------------------------------------------------------------
1235 * Sweep through the AFS cache directory, recording the inode number for
1236 * each valid data cache file there. Also, delete any file that doesn't beint32
1237 * in the cache directory during this sweep, and remember which of the other
1238 * residents of this directory were seen. After the sweep, we create any data
1239 * cache files that were missing.
1242 * vFilesFound : Set to the number of data cache files found.
1245 * 0 if everything went well,
1249 * This routine may be called several times. If the number of data cache files
1250 * found is less than the global cacheFiles, then the caller will need to call it
1251 * again to record the inodes of the missing zero-length data cache files created
1252 * in the previous call.
1255 * Fills up the global pathname_for_V array, may create and/or
1256 * delete files as explained above.
1257 *------------------------------------------------------------------------*/
1260 SweepAFSCache(int *vFilesFound)
1262 static char rn[] = "SweepAFSCache"; /*Routine name */
1263 char fullpn_FileToDelete[1024]; /*File to be deleted from cache */
1264 char *fileToDelete; /*Ptr to last component of above */
1265 DIR *cdirp; /*Ptr to cache directory structure */
1267 struct dirent *currp; /*Current directory entry */
1268 int vFileNum; /*Data cache file's associated number */
1270 if (cacheFlags & AFSCALL_INIT_MEMCACHE) {
1272 printf("%s: Memory Cache, no cache sweep done\n", rn);
1278 printf("%s: Opening cache directory '%s'\n", rn, cacheBaseDir);
1280 if (chmod(cacheBaseDir, 0700)) { /* force it to be 700 */
1281 printf("%s: Can't 'chmod 0700' the cache dir, '%s'.\n", rn,
1285 cdirp = opendir(cacheBaseDir);
1286 if (cdirp == (DIR *) 0) {
1287 printf("%s: Can't open AFS cache directory, '%s'.\n", rn,
1293 * Scan the directory entries, remembering data cache file inodes and the existance
1294 * of other important residents. Delete all files that don't belong here.
1297 sprintf(fullpn_FileToDelete, "%s/", cacheBaseDir);
1298 fileToDelete = fullpn_FileToDelete + strlen(fullpn_FileToDelete);
1300 for (currp = readdir(cdirp); currp; currp = readdir(cdirp)) {
1302 printf("%s: Current directory entry:\n", rn);
1303 #if defined(AFS_SGI62_ENV) || defined(AFS_USR_DARWIN100_ENV)
1304 printf("\tinode=%" AFS_INT64_FMT ", reclen=%d, name='%s'\n",
1305 currp->d_ino, currp->d_reclen, currp->d_name);
1306 #elif defined(AFS_USR_DFBSD_ENV)
1307 printf("\tinode=%d, name='%s'\n", currp->d_ino,
1310 printf("\tinode=%d, reclen=%d, name='%s'\n", currp->d_ino,
1311 currp->d_reclen, currp->d_name);
1316 * Guess current entry is for a data cache file.
1318 vFileNum = GetVFileNumber(currp->d_name);
1319 if (vFileNum >= 0) {
1321 * Found a valid data cache filename. Remember this file's name
1322 * and bump the number of files found.
1324 pathname_for_V[vFileNum] =
1325 afs_osi_Alloc(strlen(currp->d_name) + strlen(cacheBaseDir) +
1327 usr_assert(pathname_for_V[vFileNum] != NULL);
1328 sprintf(pathname_for_V[vFileNum], "%s/%s", cacheBaseDir,
1331 } else if (strcmp(currp->d_name, DCACHEFILE) == 0) {
1333 * Found the file holding the dcache entries.
1335 missing_DCacheFile = 0;
1336 } else if (strcmp(currp->d_name, VOLINFOFILE) == 0) {
1338 * Found the file holding the volume info.
1340 missing_VolInfoFile = 0;
1341 } else if (strcmp(currp->d_name, CELLINFOFILE) == 0) {
1342 missing_CellInfoFile = 0;
1343 } else if ((strcmp(currp->d_name, ".") == 0)
1344 || (strcmp(currp->d_name, "..") == 0)
1345 || (strcmp(currp->d_name, "lost+found") == 0)) {
1347 * Don't do anything - this file is legit, and is to be left alone.
1351 * This file doesn't belong in the cache. Nuke it.
1353 sprintf(fileToDelete, "%s", currp->d_name);
1355 printf("%s: Deleting '%s'\n", rn, fullpn_FileToDelete);
1356 if (unlink(fullpn_FileToDelete)) {
1357 printf("%s: Can't unlink '%s', errno is %d\n", rn,
1358 fullpn_FileToDelete, errno);
1364 * Create all the cache files that are missing.
1366 if (missing_DCacheFile) {
1368 printf("%s: Creating '%s'\n", rn, fullpn_DCacheFile);
1369 if (CreateCacheFile(fullpn_DCacheFile))
1370 printf("%s: Can't create '%s'\n", rn, fullpn_DCacheFile);
1372 if (missing_VolInfoFile) {
1374 printf("%s: Creating '%s'\n", rn, fullpn_VolInfoFile);
1375 if (CreateCacheFile(fullpn_VolInfoFile))
1376 printf("%s: Can't create '%s'\n", rn, fullpn_VolInfoFile);
1378 if (missing_CellInfoFile) {
1380 printf("%s: Creating '%s'\n", rn, fullpn_CellInfoFile);
1381 if (CreateCacheFile(fullpn_CellInfoFile))
1382 printf("%s: Can't create '%s'\n", rn, fullpn_CellInfoFile);
1385 if (*vFilesFound < cacheFiles) {
1387 * We came up short on the number of data cache files found. Scan through the inode
1388 * list and create all missing files.
1390 for (vFileNum = 0; vFileNum < cacheFiles; vFileNum++)
1391 if (pathname_for_V[vFileNum] == (AFSD_INO_T) 0) {
1392 sprintf(vFileNumber, "%d", vFileNum);
1394 printf("%s: Creating '%s'\n", rn, fullpn_VFile);
1395 if (CreateCacheFile(fullpn_VFile))
1396 printf("%s: Can't create '%s'\n", rn, fullpn_VFile);
1401 * Close the directory, return success.
1404 printf("%s: Closing cache directory.\n", rn);
1410 ConfigCell(register struct afsconf_cell *aci, void *arock,
1411 struct afsconf_dir *adir)
1413 register int isHomeCell;
1415 afs_int32 cellFlags = 0;
1416 afs_int32 hosts[MAXHOSTSPERCELL];
1418 /* figure out if this is the home cell */
1419 isHomeCell = (strcmp(aci->name, afs_LclCellName) == 0);
1421 cellFlags = 2; /* not home, suid is forbidden */
1423 /* build address list */
1424 for (i = 0; i < MAXHOSTSPERCELL; i++)
1425 memcpy(&hosts[i], &aci->hostAddr[i].sin_addr, sizeof(afs_int32));
1427 if (aci->linkedCell)
1428 cellFlags |= 4; /* Flag that linkedCell arg exists,
1429 * for upwards compatibility */
1431 /* configure one cell */
1432 call_syscall(AFSCALL_CALL, AFSOP_ADDCELL2, (long)hosts, /* server addresses */
1433 (long)aci->name, /* cell name */
1434 (long)cellFlags, /* is this the home cell? */
1435 (long)aci->linkedCell); /* Linked cell, if any */
1440 ConfigCellAlias(struct afsconf_cellalias *aca, void *arock, struct afsconf_dir *adir)
1442 call_syscall(AFSOP_ADDCELLALIAS, (long)aca->aliasName,
1443 (long)aca->realName, 0, 0, 0);
1448 * Set the UDP port number RX uses for UDP datagrams
1451 uafs_SetRxPort(int port)
1453 usr_assert(usr_rx_port == 0);
1459 * Initialize the user space client.
1462 uafs_Init(char *rn, char *mountDirParam, char *confDirParam,
1463 char *cacheBaseDirParam, int cacheBlocksParam, int cacheFilesParam,
1464 int cacheStatEntriesParam, int dCacheSizeParam, int vCacheSizeParam,
1465 int chunkSizeParam, int closeSynchParam, int debugParam,
1466 int nDaemonsParam, int cacheFlagsParam, char *logFile)
1471 int currVFile; /* Current AFS cache file number */
1472 int lookupResult; /* Result of GetLocalCellName() */
1473 int cacheIteration; /* cache verification loop counter */
1474 int vFilesFound; /* Num data cache files found in sweep */
1479 afs_int32 buffer[MAXIPADDRS];
1480 afs_int32 maskbuffer[MAXIPADDRS];
1481 afs_int32 mtubuffer[MAXIPADDRS];
1484 * Use the thread specific data to implement the user structure
1486 usr_keycreate(&afs_global_u_key, free);
1489 * Initialize the global ucred structure
1491 afs_global_ucredp = (struct usr_ucred *)
1492 afs_osi_Alloc(sizeof(struct usr_ucred));
1493 usr_assert(afs_global_ucredp != NULL);
1494 afs_global_ucredp->cr_ref = 1;
1495 afs_set_cr_uid(afs_global_ucredp, geteuid());
1496 afs_set_cr_gid(afs_global_ucredp, getegid());
1497 afs_set_cr_ruid(afs_global_ucredp, getuid());
1498 afs_set_cr_rgid(afs_global_ucredp, getgid());
1499 afs_global_ucredp->cr_suid = afs_cr_ruid(afs_global_ucredp);
1500 afs_global_ucredp->cr_sgid = afs_cr_rgid(afs_global_ucredp);
1501 st = getgroups(NGROUPS, &afs_global_ucredp->cr_groups[0]);
1502 usr_assert(st >= 0);
1503 afs_global_ucredp->cr_ngroups = (unsigned long)st;
1504 for (i = st; i < NGROUPS; i++) {
1505 afs_global_ucredp->cr_groups[i] = NOGROUP;
1509 * Initialize the global process structure
1511 afs_global_procp = (struct usr_proc *)
1512 afs_osi_Alloc(sizeof(struct usr_proc));
1513 usr_assert(afs_global_procp != NULL);
1514 afs_global_procp->p_pid = osi_getpid();
1515 afs_global_procp->p_ppid = (pid_t) 1;
1516 afs_global_procp->p_ucred = afs_global_ucredp;
1519 * Initialize the AFS mount point, default is '/afs'.
1520 * Strip duplicate/trailing slashes from mount point string.
1521 * afs_mountDirLen is set to strlen(afs_mountDir).
1523 if (mountDirParam) {
1524 sprintf(tbuffer, "%s", mountDirParam);
1526 sprintf(tbuffer, "afs");
1528 afs_mountDir[0] = '/';
1529 afs_mountDirLen = 1;
1530 for (lastchar = '/', p = &tbuffer[0]; *p != '\0'; p++) {
1531 if (lastchar != '/' || *p != '/') {
1532 afs_mountDir[afs_mountDirLen++] = lastchar = *p;
1535 if (lastchar == '/' && afs_mountDirLen > 1)
1537 afs_mountDir[afs_mountDirLen] = '\0';
1538 usr_assert(afs_mountDirLen > 1);
1541 * Initialize cache parameters using the input arguments
1544 cacheBlocks = cacheBlocksParam;
1545 if (cacheFilesParam != 0) {
1546 cacheFiles = cacheFilesParam;
1548 cacheFiles = cacheBlocks / 10;
1550 if (cacheStatEntriesParam != 0) {
1551 cacheStatEntries = cacheStatEntriesParam;
1553 strcpy(cacheBaseDir, cacheBaseDirParam);
1554 if (nDaemonsParam != 0) {
1555 nDaemons = nDaemonsParam;
1559 afsd_verbose = debugParam;
1560 afsd_debug = debugParam;
1561 chunkSize = chunkSizeParam;
1562 if (dCacheSizeParam != 0) {
1563 dCacheSize = dCacheSizeParam;
1565 dCacheSize = cacheFiles / 2;
1567 if (vCacheSizeParam != 0) {
1568 vCacheSize = vCacheSizeParam;
1570 strcpy(confDir, confDirParam);
1571 afsd_CloseSynch = closeSynchParam;
1572 if (cacheFlagsParam >= 0) {
1573 cacheFlags = cacheFlagsParam;
1575 if (cacheFlags & AFSCALL_INIT_MEMCACHE) {
1576 cacheFiles = dCacheSize;
1579 sprintf(fullpn_CacheInfo, "%s/%s", confDir, CACHEINFOFILE);
1580 if (logFile == NULL) {
1581 sprintf(fullpn_AFSLogFile, "%s/%s", confDir, AFSLOGFILE);
1583 strcpy(fullpn_AFSLogFile, logFile);
1586 printf("\n%s: Initializing user space AFS client\n\n", rn);
1587 printf(" mountDir: %s\n", afs_mountDir);
1588 printf(" confDir: %s\n", confDir);
1589 printf(" cacheBaseDir: %s\n", cacheBaseDir);
1590 printf(" cacheBlocks: %d\n", cacheBlocks);
1591 printf(" cacheFiles: %d\n", cacheFiles);
1592 printf(" cacheStatEntries: %d\n", cacheStatEntries);
1593 printf(" dCacheSize: %d\n", dCacheSize);
1594 printf(" vCacheSize: %d\n", vCacheSize);
1595 printf(" chunkSize: %d\n", chunkSize);
1596 printf(" afsd_CloseSynch: %d\n", afsd_CloseSynch);
1597 printf(" afsd_debug/verbose: %d/%d\n", afsd_debug, afsd_verbose);
1598 printf(" nDaemons: %d\n", nDaemons);
1599 printf(" cacheFlags: %d\n", cacheFlags);
1600 printf(" logFile: %s\n", fullpn_AFSLogFile);
1605 * Initialize the AFS client
1610 * Pull out all the configuration info for the workstation's AFS cache and
1611 * the cellular community we're willing to let our users see.
1613 afs_cdir = afsconf_Open(confDir);
1615 printf("afsd: some file missing or bad in %s\n", confDir);
1620 afsconf_GetLocalCell(afs_cdir, afs_LclCellName,
1621 sizeof(afs_LclCellName));
1623 printf("%s: Can't get my home cell name! [Error is %d]\n", rn,
1627 printf("%s: My home cell is '%s'\n", rn, afs_LclCellName);
1630 if ((logfd = fopen(fullpn_AFSLogFile, "r+")) == 0) {
1632 printf("%s: Creating '%s'\n", rn, fullpn_AFSLogFile);
1633 if (CreateCacheFile(fullpn_AFSLogFile)) {
1635 ("%s: Can't create '%s' (You may want to use the -logfile option)\n",
1636 rn, fullpn_AFSLogFile);
1643 * Create and zero the pathname table for the desired cache files.
1645 pathname_for_V = (char **)afs_osi_Alloc(cacheFiles * sizeof(char *));
1646 if (pathname_for_V == NULL) {
1647 printf("%s: malloc() failed for cache file table with %d entries.\n",
1651 memset(pathname_for_V, 0, (cacheFiles * sizeof(char *)));
1653 printf("%s: %d pathname_for_V entries at %" AFS_PTR_FMT
1654 ", %lud bytes\n", rn, cacheFiles, pathname_for_V,
1655 afs_printable_uint32_lu(cacheFiles * sizeof(AFSD_INO_T)));
1658 * Set up all the pathnames we'll need for later.
1660 sprintf(fullpn_DCacheFile, "%s/%s", cacheBaseDir, DCACHEFILE);
1661 sprintf(fullpn_VolInfoFile, "%s/%s", cacheBaseDir, VOLINFOFILE);
1662 sprintf(fullpn_CellInfoFile, "%s/%s", cacheBaseDir, CELLINFOFILE);
1663 sprintf(fullpn_VFile, "%s/V", cacheBaseDir);
1664 vFileNumber = fullpn_VFile + strlen(fullpn_VFile);
1666 /* initialize AFS callback interface */
1668 /* parse multihomed address files */
1670 st = parseNetFiles((afs_uint32*)buffer,(afs_uint32*) maskbuffer, (afs_uint32*)mtubuffer, MAXIPADDRS, reason,
1671 AFSDIR_CLIENT_NETINFO_FILEPATH,
1672 AFSDIR_CLIENT_NETRESTRICT_FILEPATH);
1674 call_syscall(AFSCALL_CALL, AFSOP_ADVISEADDR, st,
1675 (long)(&buffer[0]), (long)(&maskbuffer[0]),
1676 (long)(&mtubuffer[0]));
1678 printf("ADVISEADDR: Error in specifying interface addresses:%s\n",
1685 * Start the RX listener.
1688 printf("%s: Calling AFSOP_RXLISTENER_DAEMON\n", rn);
1689 fork_syscall(AFSCALL_CALL, AFSOP_RXLISTENER_DAEMON, FALSE, FALSE, FALSE, 0);
1692 printf("%s: Forking rx callback listener.\n", rn);
1694 if (preallocs < cacheStatEntries + 50)
1695 preallocs = cacheStatEntries + 50;
1696 fork_syscall(AFSCALL_CALL, AFSOP_START_RXCALLBACK, preallocs, 0, 0, 0);
1699 * Start the RX event handler.
1702 printf("%s: Calling AFSOP_RXEVENT_DAEMON\n", rn);
1703 fork_syscall(AFSCALL_CALL, AFSOP_RXEVENT_DAEMON, FALSE, 0, 0, 0);
1706 * Set up all the kernel processes needed for AFS.
1710 printf("%s: Initializing AFS daemon.\n", rn);
1711 call_syscall(AFSCALL_CALL, AFSOP_BASIC_INIT, 1, 0, 0, 0);
1714 * Tell the kernel some basic information about the workstation's cache.
1717 printf("%s: Calling AFSOP_CACHEINIT: %d stat cache entries,"
1718 " %d optimum cache files, %d blocks in the cache,"
1719 " flags = 0x%x, dcache entries %d\n", rn, cacheStatEntries,
1720 cacheFiles, cacheBlocks, cacheFlags, dCacheSize);
1721 memset(&cparams, 0, sizeof(cparams));
1722 cparams.cacheScaches = cacheStatEntries;
1723 cparams.cacheFiles = cacheFiles;
1724 cparams.cacheBlocks = cacheBlocks;
1725 cparams.cacheDcaches = dCacheSize;
1726 cparams.cacheVolumes = vCacheSize;
1727 cparams.chunkSize = chunkSize;
1728 cparams.setTimeFlag = FALSE;
1729 cparams.memCacheFlag = cacheFlags;
1730 call_syscall(AFSCALL_CALL, AFSOP_CACHEINIT, (long)&cparams, 0, 0, 0);
1731 if (afsd_CloseSynch)
1732 call_syscall(AFSCALL_CALL, AFSOP_CLOSEWAIT, 0, 0, 0, 0);
1735 * Sweep the workstation AFS cache directory, remembering the inodes of
1736 * valid files and deleting extraneous files. Keep sweeping until we
1737 * have the right number of data cache files or we've swept too many
1741 printf("%s: Sweeping workstation's AFS cache directory.\n", rn);
1743 /* Memory-cache based system doesn't need any of this */
1744 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
1747 if (SweepAFSCache(&vFilesFound)) {
1748 printf("%s: Error on sweep %d of workstation AFS cache \
1749 directory.\n", rn, cacheIteration);
1754 ("%s: %d out of %d data cache files found in sweep %d.\n",
1755 rn, vFilesFound, cacheFiles, cacheIteration);
1756 } while ((vFilesFound < cacheFiles)
1757 && (cacheIteration < MAX_CACHE_LOOPS));
1758 } else if (afsd_verbose)
1759 printf("%s: Using memory cache, not swept\n", rn);
1762 * Pass the kernel the name of the workstation cache file holding the
1766 printf("%s: Calling AFSOP_CACHEINFO: dcache file is '%s'\n", rn,
1768 /* once again, meaningless for a memory-based cache. */
1769 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE))
1770 call_syscall(AFSCALL_CALL, AFSOP_CACHEINFO, (long)fullpn_DCacheFile,
1773 call_syscall(AFSCALL_CALL, AFSOP_CELLINFO, (long)fullpn_CellInfoFile, 0,
1777 * Pass the kernel the name of the workstation cache file holding the
1778 * volume information.
1781 printf("%s: Calling AFSOP_VOLUMEINFO: volume info file is '%s'\n", rn,
1782 fullpn_VolInfoFile);
1783 call_syscall(AFSCALL_CALL, AFSOP_VOLUMEINFO, (long)fullpn_VolInfoFile, 0,
1787 * Pass the kernel the name of the afs logging file holding the volume
1791 printf("%s: Calling AFSOP_AFSLOG: volume info file is '%s'\n", rn,
1793 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) /* ... nor this ... */
1794 call_syscall(AFSCALL_CALL, AFSOP_AFSLOG, (long)fullpn_AFSLogFile, 0,
1798 * Tell the kernel about each cell in the configuration.
1800 afsconf_CellApply(afs_cdir, ConfigCell, NULL);
1801 afsconf_CellAliasApply(afs_cdir, ConfigCellAlias, NULL);
1804 * Set the primary cell name.
1806 call_syscall(AFSCALL_CALL, AFSOP_SET_THISCELL, (long)afs_LclCellName, 0, 0, 0);
1809 printf("%s: Forking AFS daemon.\n", rn);
1810 fork_syscall(AFSCALL_CALL, AFSOP_START_AFS, 0, 0, 0, 0);
1813 printf("%s: Forking check server daemon.\n", rn);
1814 fork_syscall(AFSCALL_CALL, AFSOP_START_CS, 0, 0, 0, 0);
1817 printf("%s: Forking %d background daemons.\n", rn, nDaemons);
1818 for (i = 0; i < nDaemons; i++) {
1819 fork_syscall(AFSCALL_CALL, AFSOP_START_BKG, 0, 0, 0, 0);
1823 printf("%s: Calling AFSOP_ROOTVOLUME with '%s'\n", rn, rootVolume);
1824 call_syscall(AFSCALL_CALL, AFSOP_ROOTVOLUME, (long)rootVolume, 0, 0, 0);
1827 * Give the kernel the names of the AFS files cached on the workstation's
1832 ("%s: Calling AFSOP_CACHEFILES for each of the %d files in '%s'\n",
1833 rn, cacheFiles, cacheBaseDir);
1834 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) /* ... and again ... */
1835 for (currVFile = 0; currVFile < cacheFiles; currVFile++) {
1836 call_syscall(AFSCALL_CALL, AFSOP_CACHEFILE,
1837 (long)pathname_for_V[currVFile], 0, 0, 0);
1840 /*#ifndef NETSCAPE_NSAPI*/
1842 /* this breaks solaris if the kernel-mode client has never been installed,
1843 * and it doesn't seem to work now anyway, so just disable it */
1846 * Copy our tokens from the kernel to the user space client
1848 for (i = 0; i < 200; i++) {
1850 * Get the i'th token from the kernel
1852 memset((void *)&tbuffer[0], 0, sizeof(tbuffer));
1853 memcpy((void *)&tbuffer[0], (void *)&i, sizeof(int));
1855 iob.in_size = sizeof(int);
1857 iob.out_size = sizeof(tbuffer);
1859 #if defined(AFS_USR_SUN5_ENV) || defined(AFS_USR_OSF_ENV) || defined(AFS_USR_HPUX_ENV) || defined(AFS_USR_LINUX22_ENV) || defined(AFS_USR_DARWIN_ENV) || defined(AFS_USR_FBSD_ENV)
1860 rc = syscall(AFS_SYSCALL, AFSCALL_PIOCTL, 0, _VICEIOCTL(8), &iob, 0);
1861 #elif defined(AFS_USR_SGI_ENV)
1862 rc = syscall(AFS_PIOCTL, 0, _VICEIOCTL(8), &iob, 0);
1863 #else /* AFS_USR_AIX_ENV */
1864 rc = lpioctl(0, _VICEIOCTL(8), &iob, 0);
1867 usr_assert(errno == EDOM || errno == ENOSYS || errno == ERANGE);
1872 * Now pass the token into the user space kernel
1874 rc = uafs_SetTokens(tbuffer, iob.out_size);
1875 usr_assert(rc == 0);
1877 #endif /* !NETSCAPE_NSAPI */
1880 * All the necessary info has been passed into the kernel to run an AFS
1881 * system. Give the kernel our go-ahead.
1884 printf("%s: Calling AFSOP_GO\n", rn);
1885 call_syscall(AFSCALL_CALL, AFSOP_GO, FALSE, 0, 0, 0);
1888 * At this point, we have finished passing the kernel all the info
1889 * it needs to set up the AFS. Mount the AFS root.
1891 printf("%s: All AFS daemons started.\n", rn);
1894 printf("%s: Forking trunc-cache daemon.\n", rn);
1895 fork_syscall(AFSCALL_CALL, AFSOP_START_TRUNCDAEMON, 0, 0, 0, 0);
1898 * Mount the AFS filesystem
1901 rc = afs_mount(&afs_RootVfs, NULL, NULL);
1902 usr_assert(rc == 0);
1903 rc = afs_root(&afs_RootVfs, &afs_RootVnode);
1904 usr_assert(rc == 0);
1908 * initialize the current directory to the AFS root
1910 afs_CurrentDir = afs_RootVnode;
1911 VN_HOLD(afs_CurrentDir);
1924 VN_RELE(afs_CurrentDir);
1925 rc = afs_unmount(&afs_RootVfs);
1926 usr_assert(rc == 0);
1933 * Donate the current thread to the RX server pool.
1936 uafs_RxServerProc(void)
1940 struct rx_call *newcall = NULL;
1942 rxi_MorePackets(2); /* alloc more packets */
1943 threadID = rxi_availProcs++;
1946 sock = OSI_NULLSOCKET;
1947 rxi_ServerProc(threadID, newcall, &sock);
1948 if (sock == OSI_NULLSOCKET) {
1953 rxi_ListenerProc(sock, &threadID, &newcall);
1954 /* assert(threadID != -1); */
1955 /* assert(newcall != NULL); */
1959 struct syscallThreadArgs {
1968 #ifdef NETSCAPE_NSAPI
1970 syscallThread(void *argp)
1971 #else /* NETSCAPE_NSAPI */
1973 syscallThread(void *argp)
1974 #endif /* NETSCAPE_NSAPI */
1977 struct usr_ucred *crp;
1978 struct syscallThreadArgs *sysArgsP = (struct syscallThreadArgs *)argp;
1981 * AFS daemons run authenticated
1983 u.u_viceid = getuid();
1985 afs_set_cr_uid(crp, getuid());
1986 afs_set_cr_ruid(crp, getuid());
1987 crp->cr_suid = getuid();
1988 crp->cr_groups[0] = getgid();
1989 crp->cr_ngroups = 1;
1990 for (i = 1; i < NGROUPS; i++) {
1991 crp->cr_groups[i] = NOGROUP;
1994 call_syscall(sysArgsP->syscall, sysArgsP->afscall, sysArgsP->param1,
1995 sysArgsP->param2, sysArgsP->param3, sysArgsP->param4);
1997 afs_osi_Free(argp, -1);
2002 fork_syscall(long syscall, long afscall, long param1, long param2,
2003 long param3, long param4)
2006 struct syscallThreadArgs *sysArgsP;
2008 sysArgsP = (struct syscallThreadArgs *)
2009 afs_osi_Alloc(sizeof(struct syscallThreadArgs));
2010 usr_assert(sysArgsP != NULL);
2011 sysArgsP->syscall = syscall;
2012 sysArgsP->afscall = afscall;
2013 sysArgsP->param1 = param1;
2014 sysArgsP->param2 = param2;
2015 sysArgsP->param3 = param3;
2016 sysArgsP->param4 = param4;
2018 usr_thread_create(&tid, syscallThread, sysArgsP);
2019 usr_thread_detach(tid);
2024 call_syscall(long syscall, long afscall, long param1, long param2,
2025 long param3, long param4)
2037 a.syscall = syscall;
2038 a.afscall = afscall;
2045 u.u_ap = (char *)&a;
2047 code = Afs_syscall();
2052 uafs_SetTokens(char *tbuffer, int tlen)
2055 struct afs_ioctl iob;
2060 iob.out = &outbuf[0];
2061 iob.out_size = sizeof(outbuf);
2063 rc = call_syscall(AFSCALL_PIOCTL, 0, _VICEIOCTL(3), (long)&iob, 0, 0);
2072 uafs_RPCStatsEnableProc(void)
2075 struct afs_ioctl iob;
2078 flag = AFSCALL_RXSTATS_ENABLE;
2079 iob.in = (char *)&flag;
2080 iob.in_size = sizeof(afs_int32);
2083 rc = call_syscall(AFSCALL_PIOCTL, 0, _VICEIOCTL(53), (long)&iob, 0, 0);
2092 uafs_RPCStatsDisableProc(void)
2095 struct afs_ioctl iob;
2098 flag = AFSCALL_RXSTATS_DISABLE;
2099 iob.in = (char *)&flag;
2100 iob.in_size = sizeof(afs_int32);
2103 rc = call_syscall(AFSCALL_PIOCTL, 0, _VICEIOCTL(53), (long)&iob, 0, 0);
2112 uafs_RPCStatsClearProc(void)
2115 struct afs_ioctl iob;
2118 flag = AFSCALL_RXSTATS_CLEAR;
2119 iob.in = (char *)&flag;
2120 iob.in_size = sizeof(afs_int32);
2123 rc = call_syscall(AFSCALL_PIOCTL, 0, _VICEIOCTL(53), (long)&iob, 0, 0);
2132 uafs_RPCStatsEnablePeer(void)
2135 struct afs_ioctl iob;
2138 flag = AFSCALL_RXSTATS_ENABLE;
2139 iob.in = (char *)&flag;
2140 iob.in_size = sizeof(afs_int32);
2143 rc = call_syscall(AFSCALL_PIOCTL, 0, _VICEIOCTL(54), (long)&iob, 0, 0);
2152 uafs_RPCStatsDisablePeer(void)
2155 struct afs_ioctl iob;
2158 flag = AFSCALL_RXSTATS_DISABLE;
2159 iob.in = (char *)&flag;
2160 iob.in_size = sizeof(afs_int32);
2163 rc = call_syscall(AFSCALL_PIOCTL, 0, _VICEIOCTL(54), (long)&iob, 0, 0);
2172 uafs_RPCStatsClearPeer(void)
2175 struct afs_ioctl iob;
2178 flag = AFSCALL_RXSTATS_CLEAR;
2179 iob.in = (char *)&flag;
2180 iob.in_size = sizeof(afs_int32);
2183 rc = call_syscall(AFSCALL_PIOCTL, 0, _VICEIOCTL(54), (long)&iob, 0, 0);
2192 * Lookup a file or directory given its path.
2193 * Call VN_HOLD on the output vnode if successful.
2194 * Returns zero on success, error code on failure.
2196 * Note: Caller must hold the AFS global lock.
2199 uafs_LookupName(char *path, struct usr_vnode *parentVp,
2200 struct usr_vnode **vpp, int follow, int no_eval_mtpt)
2204 struct usr_vnode *vp;
2205 struct usr_vnode *nextVp;
2206 struct usr_vnode *linkVp;
2207 struct vcache *nextVc;
2210 char *nextPathP = NULL;
2215 * Absolute paths must start with the AFS mount point.
2217 if (path[0] != '/') {
2220 path = uafs_afsPathName(path);
2228 * Loop through the path looking for the new directory
2230 tmpPath = afs_osi_Alloc(strlen(path) + 1);
2231 usr_assert(tmpPath != NULL);
2232 strcpy(tmpPath, path);
2235 while (pathP != NULL && *pathP != '\0') {
2236 usr_assert(*pathP != '/');
2239 * terminate the current component and skip over slashes
2241 nextPathP = afs_strchr(pathP, '/');
2242 if (nextPathP != NULL) {
2243 while (*nextPathP == '/') {
2244 *(nextPathP++) = '\0';
2249 * Don't call afs_lookup on non-directories
2251 if (vp->v_type != VDIR) {
2253 afs_osi_Free(tmpPath, strlen(path) + 1);
2257 if (vp == afs_RootVnode && strcmp(pathP, "..") == 0) {
2259 * The AFS root is its own parent
2261 nextVp = afs_RootVnode;
2264 * We need execute permission to search a directory
2266 code = afs_access(VTOAFS(vp), VEXEC, u.u_cred);
2269 afs_osi_Free(tmpPath, strlen(path) + 1);
2274 * lookup the next component in the path, we can release the
2275 * subdirectory since we hold the global lock
2279 #ifdef AFS_WEB_ENHANCEMENTS
2280 if ((nextPathP != NULL && *nextPathP != '\0') || !no_eval_mtpt)
2281 code = afs_lookup(VTOAFS(vp), pathP, &nextVc, u.u_cred, 0);
2284 afs_lookup(VTOAFS(vp), pathP, &nextVc, u.u_cred,
2287 code = afs_lookup(VTOAFS(vp), pathP, &nextVc, u.u_cred, 0);
2288 #endif /* AFS_WEB_ENHANCEMENTS */
2290 nextVp=AFSTOV(nextVc);
2293 afs_osi_Free(tmpPath, strlen(path) + 1);
2299 * Follow symbolic links for parent directories and
2300 * for leaves when the follow flag is set.
2302 if ((nextPathP != NULL && *nextPathP != '\0') || follow) {
2304 while (nextVp->v_type == VLNK) {
2305 if (++linkCount > MAX_OSI_LINKS) {
2308 afs_osi_Free(tmpPath, strlen(path) + 1);
2311 code = uafs_LookupLink(nextVp, vp, &linkVp);
2315 afs_osi_Free(tmpPath, strlen(path) + 1);
2329 * Special case, nextPathP is non-null if pathname ends in slash
2331 if (nextPathP != NULL && vp->v_type != VDIR) {
2333 afs_osi_Free(tmpPath, strlen(path) + 1);
2337 afs_osi_Free(tmpPath, strlen(path) + 1);
2343 * Lookup the target of a symbolic link
2344 * Call VN_HOLD on the output vnode if successful.
2345 * Returns zero on success, error code on failure.
2347 * Note: Caller must hold the AFS global lock.
2350 uafs_LookupLink(struct usr_vnode *vp, struct usr_vnode *parentVp,
2351 struct usr_vnode **vpp)
2356 struct usr_vnode *linkVp;
2358 struct iovec iov[1];
2362 pathP = afs_osi_Alloc(MAX_OSI_PATH + 1);
2363 usr_assert(pathP != NULL);
2366 * set up the uio buffer
2368 iov[0].iov_base = pathP;
2369 iov[0].iov_len = MAX_OSI_PATH + 1;
2370 uio.uio_iov = &iov[0];
2374 uio.uio_fmode = FREAD;
2375 uio.uio_resid = MAX_OSI_PATH + 1;
2378 * Read the link data
2380 code = afs_readlink(VTOAFS(vp), &uio, u.u_cred);
2382 afs_osi_Free(pathP, MAX_OSI_PATH + 1);
2385 len = MAX_OSI_PATH + 1 - uio.uio_resid;
2389 * Find the target of the symbolic link
2391 code = uafs_LookupName(pathP, parentVp, &linkVp, 1, 0);
2393 afs_osi_Free(pathP, MAX_OSI_PATH + 1);
2397 afs_osi_Free(pathP, MAX_OSI_PATH + 1);
2403 * Lookup the parent of a file or directory given its path
2404 * Call VN_HOLD on the output vnode if successful.
2405 * Returns zero on success, error code on failure.
2407 * Note: Caller must hold the AFS global lock.
2410 uafs_LookupParent(char *path, struct usr_vnode **vpp)
2415 struct usr_vnode *parentP;
2420 * Absolute path names must start with the AFS mount point.
2423 pathP = uafs_afsPathName(path);
2424 if (pathP == NULL) {
2430 * Find the length of the parent path
2433 while (len > 0 && path[len - 1] == '/') {
2439 while (len > 0 && path[len - 1] != '/') {
2446 pathP = afs_osi_Alloc(len);
2447 usr_assert(pathP != NULL);
2448 memcpy(pathP, path, len - 1);
2449 pathP[len - 1] = '\0';
2452 * look up the parent
2454 code = uafs_LookupName(pathP, afs_CurrentDir, &parentP, 1, 0);
2455 afs_osi_Free(pathP, len);
2459 if (parentP->v_type != VDIR) {
2469 * Return a pointer to the first character in the last component
2473 uafs_LastPath(char *path)
2478 while (len > 0 && path[len - 1] == '/') {
2481 while (len > 0 && path[len - 1] != '/') {
2491 * Set the working directory.
2494 uafs_chdir(char *path)
2498 retval = uafs_chdir_r(path);
2504 uafs_chdir_r(char *path)
2509 code = uafs_LookupName(path, afs_CurrentDir, &dirP, 1, 0);
2514 if (dirP->v_type != VDIR) {
2519 VN_RELE(afs_CurrentDir);
2520 afs_CurrentDir = dirP;
2525 * Create a directory.
2528 uafs_mkdir(char *path, int mode)
2532 retval = uafs_mkdir_r(path, mode);
2538 uafs_mkdir_r(char *path, int mode)
2542 struct vnode *parentP;
2543 struct vcache *dirP;
2544 struct usr_vattr attrs;
2546 if (uafs_IsRoot(path)) {
2551 * Look up the parent directory.
2553 nameP = uafs_LastPath(path);
2554 if (nameP != NULL) {
2555 code = uafs_LookupParent(path, &parentP);
2561 parentP = afs_CurrentDir;
2567 * Make sure the directory has at least one character
2569 if (*nameP == '\0') {
2576 * Create the directory
2578 usr_vattr_null(&attrs);
2579 attrs.va_type = VREG;
2580 attrs.va_mode = mode;
2581 attrs.va_uid = afs_cr_uid(u.u_cred);
2582 attrs.va_gid = afs_cr_gid(u.u_cred);
2584 code = afs_mkdir(VTOAFS(parentP), nameP, &attrs, &dirP, u.u_cred);
2590 VN_RELE(AFSTOV(dirP));
2595 * Return 1 if path is the AFS root, otherwise return 0
2598 uafs_IsRoot(char *path)
2600 while (*path == '/' && *(path + 1) == '/') {
2603 if (strncmp(path, afs_mountDir, afs_mountDirLen) != 0) {
2606 path += afs_mountDirLen;
2607 while (*path == '/') {
2610 if (*path != '\0') {
2618 * Note: file name may not end in a slash.
2621 uafs_open(char *path, int flags, int mode)
2625 retval = uafs_open_r(path, flags, mode);
2631 uafs_open_r(char *path, int flags, int mode)
2637 struct usr_vnode *fileP;
2638 struct usr_vnode *dirP;
2639 struct usr_vattr attrs;
2644 if (uafs_IsRoot(path)) {
2645 fileP = afs_RootVnode;
2649 * Look up the parent directory.
2651 nameP = uafs_LastPath(path);
2652 if (nameP != NULL) {
2653 code = uafs_LookupParent(path, &dirP);
2659 dirP = afs_CurrentDir;
2665 * Make sure the filename has at least one character
2667 if (*nameP == '\0') {
2674 * Get the VNODE for this file
2676 if (flags & O_CREAT) {
2677 usr_vattr_null(&attrs);
2678 attrs.va_type = VREG;
2679 attrs.va_mode = mode;
2680 attrs.va_uid = afs_cr_uid(u.u_cred);
2681 attrs.va_gid = afs_cr_gid(u.u_cred);
2682 if (flags & O_TRUNC) {
2688 afs_create(VTOAFS(dirP), nameP, &attrs,
2689 (flags & O_EXCL) ? usr_EXCL : usr_NONEXCL, mode,
2699 code = uafs_LookupName(nameP, dirP, &fileP, 1, 0);
2707 * Check whether we have access to this file
2710 if (flags & (O_RDONLY | O_RDWR)) {
2713 if (flags & (O_WRONLY | O_RDWR)) {
2717 fileMode = VREAD; /* since O_RDONLY is 0 */
2718 code = afs_access(VTOAFS(fileP), fileMode, u.u_cred);
2726 * Get the file attributes, all we need is the size
2728 code = afs_getattr(VTOAFS(fileP), &attrs, u.u_cred);
2738 * Setup the open flags
2741 if (flags & O_TRUNC) {
2742 openFlags |= FTRUNC;
2744 if (flags & O_APPEND) {
2745 openFlags |= FAPPEND;
2747 if (flags & O_SYNC) {
2750 if (flags & O_SYNC) {
2753 if (flags & (O_RDONLY | O_RDWR)) {
2756 if (flags & (O_WRONLY | O_RDWR)) {
2757 openFlags |= FWRITE;
2759 if ((openFlags & (FREAD | FWRITE)) == 0) {
2760 /* O_RDONLY is 0, so ... */
2765 * Truncate if necessary
2767 if ((flags & O_TRUNC) && (attrs.va_size != 0)) {
2768 usr_vattr_null(&attrs);
2769 attrs.va_mask = ATTR_SIZE;
2771 code = afs_setattr(VTOAFS(fileP), &attrs, u.u_cred);
2783 code = afs_open(&vc, openFlags, u.u_cred);
2791 * Put the vnode pointer into the file table
2793 for (fd = 0; fd < MAX_OSI_FILES; fd++) {
2794 if (afs_FileTable[fd] == NULL) {
2795 afs_FileTable[fd] = fileP;
2796 afs_FileFlags[fd] = openFlags;
2797 if (flags & O_APPEND) {
2798 afs_FileOffsets[fd] = attrs.va_size;
2800 afs_FileOffsets[fd] = 0;
2805 if (fd == MAX_OSI_FILES) {
2818 uafs_creat(char *path, int mode)
2821 rc = uafs_open(path, O_CREAT | O_WRONLY | O_TRUNC, mode);
2826 uafs_creat_r(char *path, int mode)
2829 rc = uafs_open_r(path, O_CREAT | O_WRONLY | O_TRUNC, mode);
2837 uafs_write(int fd, char *buf, int len)
2841 retval = uafs_pwrite_r(fd, buf, len, afs_FileOffsets[fd]);
2847 uafs_pwrite(int fd, char *buf, int len, off_t offset)
2851 retval = uafs_pwrite_r(fd, buf, len, offset);
2857 uafs_pwrite_r(int fd, char *buf, int len, off_t offset)
2861 struct iovec iov[1];
2862 struct usr_vnode *fileP;
2865 * Make sure this is an open file
2867 fileP = afs_FileTable[fd];
2868 if (fileP == NULL) {
2874 * set up the uio buffer
2876 iov[0].iov_base = buf;
2877 iov[0].iov_len = len;
2878 uio.uio_iov = &iov[0];
2880 uio.uio_offset = offset;
2882 uio.uio_fmode = FWRITE;
2883 uio.uio_resid = len;
2889 code = afs_write(VTOAFS(fileP), &uio, afs_FileFlags[fd], u.u_cred, 0);
2895 afs_FileOffsets[fd] = uio.uio_offset;
2896 return (len - uio.uio_resid);
2903 uafs_read(int fd, char *buf, int len)
2907 retval = uafs_pread_r(fd, buf, len, afs_FileOffsets[fd]);
2913 uafs_pread(int fd, char *buf, int len, off_t offset)
2917 retval = uafs_pread_r(fd, buf, len, offset);
2923 uafs_pread_r(int fd, char *buf, int len, off_t offset)
2927 struct iovec iov[1];
2928 struct usr_vnode *fileP;
2929 struct usr_buf *bufP;
2932 * Make sure this is an open file
2934 fileP = afs_FileTable[fd];
2935 if (fileP == NULL) {
2941 * set up the uio buffer
2943 iov[0].iov_base = buf;
2944 iov[0].iov_len = len;
2945 uio.uio_iov = &iov[0];
2947 uio.uio_offset = offset;
2949 uio.uio_fmode = FREAD;
2950 uio.uio_resid = len;
2955 code = afs_read(VTOAFS(fileP), &uio, u.u_cred, 0, &bufP, 0);
2961 afs_FileOffsets[fd] = uio.uio_offset;
2962 return (len - uio.uio_resid);
2966 * Copy the attributes of a file into a stat structure.
2968 * NOTE: Caller must hold the global AFS lock.
2971 uafs_GetAttr(struct usr_vnode *vp, struct stat *stats)
2974 struct usr_vattr attrs;
2979 * Get the attributes
2981 code = afs_getattr(VTOAFS(vp), &attrs, u.u_cred);
2987 * Copy the attributes, zero fields that aren't set
2989 memset((void *)stats, 0, sizeof(struct stat));
2991 stats->st_ino = attrs.va_nodeid;
2992 stats->st_mode = attrs.va_mode;
2993 stats->st_nlink = attrs.va_nlink;
2994 stats->st_uid = attrs.va_uid;
2995 stats->st_gid = attrs.va_gid;
2996 stats->st_rdev = attrs.va_rdev;
2997 stats->st_size = attrs.va_size;
2998 stats->st_atime = attrs.va_atime.tv_sec;
2999 stats->st_mtime = attrs.va_mtime.tv_sec;
3000 stats->st_ctime = attrs.va_ctime.tv_sec;
3001 stats->st_blksize = attrs.va_blocksize;
3002 stats->st_blocks = attrs.va_blocks;
3008 * Get the attributes of a file, do follow links
3011 uafs_stat(char *path, struct stat *buf)
3015 retval = uafs_stat_r(path, buf);
3021 uafs_stat_r(char *path, struct stat *buf)
3026 code = uafs_LookupName(path, afs_CurrentDir, &vp, 1, 0);
3031 code = uafs_GetAttr(vp, buf);
3041 * Get the attributes of a file, don't follow links
3044 uafs_lstat(char *path, struct stat *buf)
3048 retval = uafs_lstat_r(path, buf);
3054 uafs_lstat_r(char *path, struct stat *buf)
3059 code = uafs_LookupName(path, afs_CurrentDir, &vp, 0, 0);
3064 code = uafs_GetAttr(vp, buf);
3074 * Get the attributes of an open file
3077 uafs_fstat(int fd, struct stat *buf)
3081 retval = uafs_fstat_r(fd, buf);
3087 uafs_fstat_r(int fd, struct stat *buf)
3092 vp = afs_FileTable[fd];
3097 code = uafs_GetAttr(vp, buf);
3106 * change the permissions on a file
3109 uafs_chmod(char *path, int mode)
3113 retval = uafs_chmod_r(path, mode);
3119 uafs_chmod_r(char *path, int mode)
3123 struct usr_vattr attrs;
3125 code = uafs_LookupName(path, afs_CurrentDir, &vp, 1, 0);
3130 usr_vattr_null(&attrs);
3131 attrs.va_mask = ATTR_MODE;
3132 attrs.va_mode = mode;
3133 code = afs_setattr(VTOAFS(vp), &attrs, u.u_cred);
3143 * change the permissions on an open file
3146 uafs_fchmod(int fd, int mode)
3150 retval = uafs_fchmod_r(fd, mode);
3156 uafs_fchmod_r(int fd, int mode)
3160 struct usr_vattr attrs;
3162 vp = afs_FileTable[fd];
3167 usr_vattr_null(&attrs);
3168 attrs.va_mask = ATTR_MODE;
3169 attrs.va_mode = mode;
3170 code = afs_setattr(VTOAFS(vp), &attrs, u.u_cred);
3182 uafs_truncate(char *path, int length)
3186 retval = uafs_truncate_r(path, length);
3192 uafs_truncate_r(char *path, int length)
3196 struct usr_vattr attrs;
3198 code = uafs_LookupName(path, afs_CurrentDir, &vp, 1, 0);
3203 usr_vattr_null(&attrs);
3204 attrs.va_mask = ATTR_SIZE;
3205 attrs.va_size = length;
3206 code = afs_setattr(VTOAFS(vp), &attrs, u.u_cred);
3216 * truncate an open file
3219 uafs_ftruncate(int fd, int length)
3223 retval = uafs_ftruncate_r(fd, length);
3229 uafs_ftruncate_r(int fd, int length)
3233 struct usr_vattr attrs;
3235 vp = afs_FileTable[fd];
3240 usr_vattr_null(&attrs);
3241 attrs.va_mask = ATTR_SIZE;
3242 attrs.va_size = length;
3243 code = afs_setattr(VTOAFS(vp), &attrs, u.u_cred);
3252 * set the read/write file pointer of an open file
3255 uafs_lseek(int fd, int offset, int whence)
3259 retval = uafs_lseek_r(fd, offset, whence);
3265 uafs_lseek_r(int fd, int offset, int whence)
3269 struct usr_vattr attrs;
3270 struct usr_vnode *vp;
3272 vp = afs_FileTable[fd];
3279 newpos = afs_FileOffsets[fd] + offset;
3285 code = afs_getattr(VTOAFS(vp), &attrs, u.u_cred);
3290 newpos = attrs.va_size + offset;
3300 afs_FileOffsets[fd] = newpos;
3312 retval = uafs_fsync_r(fd);
3318 uafs_fsync_r(int fd)
3321 struct usr_vnode *fileP;
3324 fileP = afs_FileTable[fd];
3325 if (fileP == NULL) {
3330 code = afs_fsync(VTOAFS(fileP), u.u_cred);
3347 retval = uafs_close_r(fd);
3353 uafs_close_r(int fd)
3356 struct usr_vnode *fileP;
3358 fileP = afs_FileTable[fd];
3359 if (fileP == NULL) {
3363 afs_FileTable[fd] = NULL;
3365 code = afs_close(VTOAFS(fileP), afs_FileFlags[fd], u.u_cred);
3376 * Create a hard link from the source to the target
3377 * Note: file names may not end in a slash.
3380 uafs_link(char *existing, char *new)
3384 retval = uafs_link_r(existing, new);
3390 uafs_link_r(char *existing, char *new)
3393 struct usr_vnode *existP;
3394 struct usr_vnode *dirP;
3397 if (uafs_IsRoot(new)) {
3402 * Look up the existing node.
3404 code = uafs_LookupName(existing, afs_CurrentDir, &existP, 1, 0);
3411 * Look up the parent directory.
3413 nameP = uafs_LastPath(new);
3414 if (nameP != NULL) {
3415 code = uafs_LookupParent(new, &dirP);
3422 dirP = afs_CurrentDir;
3428 * Make sure the filename has at least one character
3430 if (*nameP == '\0') {
3440 code = afs_link(VTOAFS(existP), VTOAFS(dirP), nameP, u.u_cred);
3451 * Create a symbolic link from the source to the target
3452 * Note: file names may not end in a slash.
3455 uafs_symlink(char *target, char *source)
3459 retval = uafs_symlink_r(target, source);
3465 uafs_symlink_r(char *target, char *source)
3468 struct usr_vnode *dirP;
3469 struct usr_vattr attrs;
3472 if (uafs_IsRoot(source)) {
3477 * Look up the parent directory.
3479 nameP = uafs_LastPath(source);
3480 if (nameP != NULL) {
3481 code = uafs_LookupParent(source, &dirP);
3487 dirP = afs_CurrentDir;
3493 * Make sure the filename has at least one character
3495 if (*nameP == '\0') {
3504 usr_vattr_null(&attrs);
3505 attrs.va_type = VLNK;
3506 attrs.va_mode = 0777;
3507 attrs.va_uid = afs_cr_uid(u.u_cred);
3508 attrs.va_gid = afs_cr_gid(u.u_cred);
3509 code = afs_symlink(VTOAFS(dirP), nameP, &attrs, target, u.u_cred);
3519 * Read a symbolic link into the buffer
3522 uafs_readlink(char *path, char *buf, int len)
3526 retval = uafs_readlink_r(path, buf, len);
3532 uafs_readlink_r(char *path, char *buf, int len)
3535 struct usr_vnode *vp;
3537 struct iovec iov[1];
3539 code = uafs_LookupName(path, afs_CurrentDir, &vp, 0, 0);
3545 if (vp->v_type != VLNK) {
3552 * set up the uio buffer
3554 iov[0].iov_base = buf;
3555 iov[0].iov_len = len;
3556 uio.uio_iov = &iov[0];
3560 uio.uio_fmode = FREAD;
3561 uio.uio_resid = len;
3566 code = afs_readlink(VTOAFS(vp), &uio, u.u_cred);
3574 * return the number of bytes read
3576 return (len - uio.uio_resid);
3580 * Remove a file (or directory)
3581 * Note: file name may not end in a slash.
3584 uafs_unlink(char *path)
3588 retval = uafs_unlink_r(path);
3594 uafs_unlink_r(char *path)
3597 struct usr_vnode *dirP;
3600 if (uafs_IsRoot(path)) {
3605 * Look up the parent directory.
3607 nameP = uafs_LastPath(path);
3608 if (nameP != NULL) {
3609 code = uafs_LookupParent(path, &dirP);
3615 dirP = afs_CurrentDir;
3621 * Make sure the filename has at least one character
3623 if (*nameP == '\0') {
3632 code = afs_remove(VTOAFS(dirP), nameP, u.u_cred);
3643 * Rename a file (or directory)
3646 uafs_rename(char *old, char *new)
3650 retval = uafs_rename_r(old, new);
3656 uafs_rename_r(char *old, char *new)
3661 struct usr_vnode *odirP;
3662 struct usr_vnode *ndirP;
3664 if (uafs_IsRoot(new)) {
3669 * Look up the parent directories.
3671 onameP = uafs_LastPath(old);
3672 if (onameP != NULL) {
3673 code = uafs_LookupParent(old, &odirP);
3679 odirP = afs_CurrentDir;
3683 nnameP = uafs_LastPath(new);
3684 if (nnameP != NULL) {
3685 code = uafs_LookupParent(new, &ndirP);
3691 ndirP = afs_CurrentDir;
3697 * Make sure the filename has at least one character
3699 if (*onameP == '\0' || *nnameP == '\0') {
3709 code = afs_rename(VTOAFS(odirP), onameP, VTOAFS(ndirP), nnameP, u.u_cred);
3721 * Remove a or directory
3722 * Note: file name may not end in a slash.
3725 uafs_rmdir(char *path)
3729 retval = uafs_rmdir_r(path);
3735 uafs_rmdir_r(char *path)
3738 struct usr_vnode *dirP;
3741 if (uafs_IsRoot(path)) {
3746 * Look up the parent directory.
3748 nameP = uafs_LastPath(path);
3749 if (nameP != NULL) {
3750 code = uafs_LookupParent(path, &dirP);
3756 dirP = afs_CurrentDir;
3762 * Make sure the directory name has at least one character
3764 if (*nameP == '\0') {
3771 * Remove the directory
3773 code = afs_rmdir(VTOAFS(dirP), nameP, u.u_cred);
3784 * Flush a file from the AFS cache
3787 uafs_FlushFile(char *path)
3790 struct afs_ioctl iob;
3798 call_syscall(AFSCALL_PIOCTL, (long)path, _VICEIOCTL(6), (long)&iob, 0,
3809 uafs_FlushFile_r(char *path)
3813 retval = uafs_FlushFile(path);
3822 uafs_opendir(char *path)
3826 retval = uafs_opendir_r(path);
3832 uafs_opendir_r(char *path)
3835 struct usr_vnode *fileP;
3839 * Open the directory for reading
3841 fd = uafs_open_r(path, O_RDONLY, 0);
3846 fileP = afs_FileTable[fd];
3847 if (fileP == NULL) {
3851 if (fileP->v_type != VDIR) {
3858 * Set up the directory structures
3861 (usr_DIR *) afs_osi_Alloc(sizeof(usr_DIR) + USR_DIRSIZE +
3862 sizeof(struct usr_dirent));
3863 usr_assert(dirp != NULL);
3864 dirp->dd_buf = (char *)(dirp + 1);
3874 * Read directory entries into a file system independent format.
3875 * This routine was developed to support AFS cache consistency testing.
3876 * You should use uafs_readdir instead.
3879 uafs_getdents(int fd, struct min_direct *buf, int len)
3883 retval = uafs_getdents_r(fd, buf, len);
3889 uafs_getdents_r(int fd, struct min_direct *buf, int len)
3893 struct usr_vnode *vp;
3894 struct iovec iov[1];
3897 * Make sure this is an open file
3899 vp = afs_FileTable[fd];
3907 * set up the uio buffer
3909 iov[0].iov_base = (char *)buf;
3910 iov[0].iov_len = len;
3911 uio.uio_iov = &iov[0];
3913 uio.uio_offset = afs_FileOffsets[fd];
3915 uio.uio_fmode = FREAD;
3916 uio.uio_resid = len;
3919 * read the next chunk from the directory
3921 code = afs_readdir(VTOAFS(vp), &uio, u.u_cred);
3927 afs_FileOffsets[fd] = uio.uio_offset;
3928 return (len - uio.uio_resid);
3932 * read from a directory (names only)
3935 uafs_readdir(usr_DIR * dirp)
3937 struct usr_dirent *retval;
3939 retval = uafs_readdir_r(dirp);
3945 uafs_readdir_r(usr_DIR * dirp)
3950 struct usr_vnode *vp;
3951 struct iovec iov[1];
3952 struct usr_dirent *direntP;
3953 struct min_direct *directP;
3956 * Make sure this is an open file
3958 vp = afs_FileTable[dirp->dd_fd];
3965 * If there are no entries in the stream buffer
3966 * then read another chunk
3968 directP = (struct min_direct *)(dirp->dd_buf + dirp->dd_loc);
3969 if (dirp->dd_size == 0 || directP->d_fileno == 0) {
3971 * set up the uio buffer
3973 iov[0].iov_base = dirp->dd_buf;
3974 iov[0].iov_len = USR_DIRSIZE;
3975 uio.uio_iov = &iov[0];
3977 uio.uio_offset = afs_FileOffsets[dirp->dd_fd];
3979 uio.uio_fmode = FREAD;
3980 uio.uio_resid = USR_DIRSIZE;
3983 * read the next chunk from the directory
3985 code = afs_readdir(VTOAFS(vp), &uio, u.u_cred);
3990 afs_FileOffsets[dirp->dd_fd] = uio.uio_offset;
3992 dirp->dd_size = USR_DIRSIZE - iov[0].iov_len;
3994 directP = (struct min_direct *)(dirp->dd_buf + dirp->dd_loc);
3998 * Check for end of file
4000 if (dirp->dd_size == 0 || directP->d_fileno == 0) {
4004 len = ((sizeof(struct min_direct) + directP->d_namlen + 4) & (~3));
4005 usr_assert(len <= dirp->dd_size);
4008 * Copy the next entry into the usr_dirent structure and advance
4010 direntP = (struct usr_dirent *)(dirp->dd_buf + USR_DIRSIZE);
4011 direntP->d_ino = directP->d_fileno;
4012 direntP->d_off = direntP->d_reclen;
4014 sizeof(struct usr_dirent) - MAXNAMLEN + directP->d_namlen + 1;
4015 memcpy(&direntP->d_name[0], (void *)(directP + 1), directP->d_namlen);
4016 direntP->d_name[directP->d_namlen] = '\0';
4017 dirp->dd_loc += len;
4018 dirp->dd_size -= len;
4027 uafs_closedir(usr_DIR * dirp)
4031 retval = uafs_closedir_r(dirp);
4037 uafs_closedir_r(usr_DIR * dirp)
4043 afs_osi_Free((char *)dirp,
4044 sizeof(usr_DIR) + USR_DIRSIZE + sizeof(struct usr_dirent));
4045 rc = uafs_close_r(fd);
4050 * Do AFS authentication
4053 uafs_klog(char *user, char *cell, char *passwd, char **reason)
4056 afs_int32 password_expires = -1;
4058 usr_mutex_lock(&osi_authenticate_lock);
4060 ka_UserAuthenticateGeneral(KA_USERAUTH_VERSION +
4061 KA_USERAUTH_DOSETPAG2, user, NULL, cell,
4062 passwd, 0, &password_expires, 0, reason);
4063 usr_mutex_unlock(&osi_authenticate_lock);
4068 uafs_klog_r(char *user, char *cell, char *passwd, char **reason)
4072 retval = uafs_klog(user, cell, passwd, reason);
4078 * Destroy AFS credentials from the kernel cache
4085 usr_mutex_lock(&osi_authenticate_lock);
4086 code = ktc_ForgetAllTokens();
4087 usr_mutex_unlock(&osi_authenticate_lock);
4096 retval = uafs_unlog();
4102 * Strip the AFS mount point from a pathname string. Return
4103 * NULL if the path is a relative pathname or if the path
4104 * doesn't start with the AFS mount point string.
4107 uafs_afsPathName(char *path)
4116 for (i = 1, p = path + 1; *p != '\0'; p++) {
4117 /* Ignore duplicate slashes */
4118 if (*p == '/' && lastchar == '/')
4120 /* Is this a subdirectory of the AFS mount point? */
4121 if (afs_mountDir[i] == '\0' && *p == '/') {
4122 /* strip leading slashes */
4123 while (*(++p) == '/');
4126 /* Reject paths that are not within AFS */
4127 if (*p != afs_mountDir[i])
4132 /* Is this the AFS mount point? */
4133 if (afs_mountDir[i] == '\0') {
4134 usr_assert(*p == '\0');
4140 #ifdef AFS_WEB_ENHANCEMENTS
4143 * klog but don't allocate a new pag
4146 uafs_klog_nopag(char *user, char *cell, char *passwd, char **reason)
4149 afs_int32 password_expires = -1;
4151 usr_mutex_lock(&osi_authenticate_lock);
4152 code = ka_UserAuthenticateGeneral(KA_USERAUTH_VERSION
4153 /*+KA_USERAUTH_DOSETPAG2 */ , user,
4154 NULL, cell, passwd, 0,
4155 &password_expires, 0, reason);
4156 usr_mutex_unlock(&osi_authenticate_lock);
4161 * uafs_getcellstatus
4162 * get the cell status
4165 uafs_getcellstatus(char *cell, afs_int32 * status)
4168 struct afs_ioctl iob;
4171 iob.in_size = strlen(cell) + 1;
4175 rc = call_syscall(AFSCALL_PIOCTL, /*path */ 0, _VICEIOCTL(35),
4183 *status = (intptr_t)iob.out;
4189 * Get quota of volume associated with path
4192 uafs_getvolquota(char *path, afs_int32 * BlocksInUse, afs_int32 * MaxQuota)
4195 struct afs_ioctl iob;
4196 VolumeStatus *status;
4202 iob.out_size = 1024;
4204 rc = call_syscall(AFSCALL_PIOCTL, (long)path, _VICEIOCTL(4), (long)&iob,
4212 status = (VolumeStatus *) buf;
4213 *BlocksInUse = status->BlocksInUse;
4214 *MaxQuota = status->MaxQuota;
4220 * Set quota of volume associated with path
4223 uafs_setvolquota(char *path, afs_int32 MaxQuota)
4226 struct afs_ioctl iob;
4227 VolumeStatus *status;
4235 memset(buf, 0, sizeof(VolumeStatus));
4236 status = (VolumeStatus *) buf;
4237 status->MaxQuota = MaxQuota;
4238 status->MinQuota = -1;
4240 rc = call_syscall(AFSCALL_PIOCTL, (long)path, _VICEIOCTL(5), (long)&iob,
4252 * uafs_statmountpoint
4253 * Determine whether a dir. is a mount point or not
4254 * return 1 if mount point, 0 if not
4257 uafs_statmountpoint(char *path)
4262 retval = uafs_statmountpoint_r(path);
4268 uafs_statmountpoint_r(char *path)
4275 code = uafs_LookupName(path, afs_CurrentDir, &vp, 0, 1);
4290 * Get a list of rights for the current user on path.
4293 uafs_getRights(char *path)
4300 code = uafs_LookupName(path, afs_CurrentDir, &vp, 1, 0);
4308 PRSFS_READ | PRSFS_WRITE | PRSFS_INSERT | PRSFS_LOOKUP | PRSFS_DELETE
4309 | PRSFS_LOCK | PRSFS_ADMINISTER;
4311 afs_rights = afs_getRights(VTOAFS(vp), afs_rights, u.u_cred);
4316 #endif /* AFS_WEB_ENHANCEMENTS */
4318 #endif /* UKERNEL */