2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
11 * User space client specific interface glue
14 #include <afsconfig.h>
15 #include "afs/param.h"
23 #include "afs/sysincludes.h" /* Standard vendor system headers */
25 #include "afsincludes.h" /* Afs-based standard headers */
26 #include "afs_usrops.h"
27 #include "afs/afs_stats.h"
29 #include "afs/cellconfig.h"
31 #include "afs/kautils.h"
32 #include "afs/afsutil.h"
33 #include "rx/rx_globals.h"
39 #define CACHEINFOFILE "cacheinfo"
40 #define AFSLOGFILE "AFSLog"
41 #define DCACHEFILE "CacheItems"
42 #define VOLINFOFILE "VolumeItems"
43 #define CELLINFOFILE "CellItems"
47 #define MIN(A,B) ((A)<(B)?(A):(B))
50 #define MAX(A,B) ((A)>(B)?(A):(B))
53 extern int cacheDiskType;
55 char afs_LclCellName[64];
57 struct usr_vnode *afs_FileTable[MAX_OSI_FILES];
58 int afs_FileFlags[MAX_OSI_FILES];
59 off_t afs_FileOffsets[MAX_OSI_FILES];
61 #define MAX_CACHE_LOOPS 4
63 struct usr_vfs afs_RootVfs;
64 struct usr_vnode *afs_RootVnode = NULL;
65 struct usr_vnode *afs_CurrentDir = NULL;
67 afs_int32 cacheBlocks; /* Num blocks in cache */
68 afs_int32 cacheFiles = 1000; /* Num files in workstation cache */
69 afs_int32 cacheStatEntries = 300; /* Num of stat cache entries */
70 char cacheBaseDir[1024]; /* AFS cache directory */
71 char confDir[1024]; /* AFS configuration directory */
72 char afs_mountDir[1024]; /* AFS mount point */
73 int afs_mountDirLen; /* strlen of AFS mount point */
74 char fullpn_DCacheFile[1024]; /* Full pathname of DCACHEFILE */
75 char fullpn_VolInfoFile[1024]; /* Full pathname of VOLINFOFILE */
76 char fullpn_CellInfoFile[1024]; /* Full pathname of CELLINFOFILE */
77 char fullpn_AFSLogFile[1024]; /* Full pathname of AFSLOGFILE */
78 char fullpn_CacheInfo[1024]; /* Full pathname of CACHEINFO */
79 char fullpn_VFile[1024]; /* Full pathname of data cache files */
80 char *vFileNumber; /* Ptr to number in file pathname */
81 char rootVolume[64] = "root.afs"; /* AFS root volume name */
82 afs_int32 isHomeCell; /* Is current cell info for home cell */
83 int createAndTrunc = O_CREAT | O_TRUNC; /* Create & truncate on open */
84 int ownerRWmode = 0600; /* Read/write OK by owner */
85 static int nDaemons = 2; /* Number of background daemons */
86 static int chunkSize = 0; /* 2^chunkSize bytes per chunk */
87 static int dCacheSize = 300; /* # of dcache entries */
88 static int vCacheSize = 50; /* # of volume cache entries */
89 static int cacheFlags = 0; /* Flags to cache manager */
90 static int preallocs = 400; /* Def # of allocated memory blocks */
91 int afsd_verbose = 0; /* Are we being chatty? */
92 int afsd_debug = 0; /* Are we printing debugging info? */
93 int afsd_CloseSynch = 0; /* Are closes synchronous or not? */
95 #define AFSD_INO_T afs_uint32
96 char **pathname_for_V; /* Array of cache file pathnames */
97 int missing_DCacheFile = 1; /* Is the DCACHEFILE missing? */
98 int missing_VolInfoFile = 1; /* Is the VOLINFOFILE missing? */
99 int missing_CellInfoFile = 1;
100 struct afs_cacheParams cparams; /* params passed to cache manager */
101 struct afsconf_dir *afs_cdir; /* config dir */
103 static int HandleMTab();
105 int afs_bufferpages = 100;
106 int usr_udpcksum = 0;
108 usr_key_t afs_global_u_key;
110 struct usr_proc *afs_global_procp = NULL;
111 struct usr_ucred *afs_global_ucredp = NULL;
112 struct usr_sysent usr_sysent[200];
114 #ifdef AFS_USR_OSF_ENV
116 #else /* AFS_USR_OSF_ENV */
118 #endif /* AFS_USR_OSF_ENV */
120 struct usr_ucred afs_osi_cred, *afs_osi_credp;
121 usr_mutex_t afs_global_lock;
122 usr_thread_t afs_global_owner;
123 usr_mutex_t rx_global_lock;
124 usr_thread_t rx_global_owner;
125 usr_mutex_t osi_inode_lock;
126 usr_mutex_t osi_waitq_lock;
127 usr_mutex_t osi_authenticate_lock;
129 afs_lock_t osi_flplock;
130 afs_lock_t osi_fsplock;
133 #ifndef NETSCAPE_NSAPI
136 * Mutex and condition variable used to implement sleep
138 pthread_mutex_t usr_sleep_mutex;
139 pthread_cond_t usr_sleep_cond;
141 #endif /* !NETSCAPE_NSAPI */
143 int call_syscall(long, long, long, long, long, long);
147 * Hash table mapping addresses onto wait structures for
148 * osi_Sleep/osi_Wakeup and osi_Wait/osi_Wakeup
150 typedef struct osi_wait {
154 struct osi_wait *next;
155 struct osi_wait *prev;
157 struct osi_wait *timedNext;
158 struct osi_wait *timedPrev;
162 * Head of the linked list of available waitq structures.
164 osi_wait_t *osi_waithash_avail;
167 * List of timed waits, NSAPI does not provide a cond_timed
168 * wait, so we need to keep track of the timed waits ourselves and
169 * periodically check for expirations
171 osi_wait_t *osi_timedwait_head;
172 osi_wait_t *osi_timedwait_tail;
177 } osi_waithash_table[OSI_WAITHASH_SIZE];
180 * Never call afs_brelse
183 ufs_brelse(struct usr_vnode *vp, struct usr_buf *bp)
190 * I am not sure what to do with these, they assert for now
193 iodone(struct usr_buf *bp)
207 * Every user is a super user
210 afs_osi_suser(void *credp)
216 afs_suser(void *credp)
222 * These are no-ops in user space
226 afs_osi_SetTime(osi_timeval_t * atv)
232 * xflock should never fall through, the only files we know
233 * about are AFS files
243 * ioctl should never fall through, the only files we know
244 * about are AFS files
254 * We do not support the inode related system calls
257 afs_syscall_icreate(long a, long b, long c, long d, long e, long f)
264 afs_syscall_iincdec(int dev, int inode, int inode_p1, int amount)
271 afs_syscall_iopen(int dev, int inode, int usrmod)
278 afs_syscall_ireadwrite(void)
285 * these routines are referenced in the vfsops structure, but
286 * should never get called
317 * uiomove copies data between kernel buffers and uio buffers
320 usr_uiomove(char *kbuf, int n, int rw, struct usr_uio *uio)
327 nio = uio->uio_iovcnt;
337 while (nio > 0 && n > 0) {
338 len = MIN(n, iovp->iov_len);
339 if (rw == UIO_READ) {
340 memcpy(iovp->iov_base, ptr, len);
342 memcpy(ptr, iovp->iov_base, len);
346 uio->uio_resid -= len;
347 uio->uio_offset += len;
348 iovp->iov_base = (char *)(iovp->iov_base) + len;
349 iovp->iov_len -= len;
360 * routines to manage user credentials
363 usr_crcopy(struct usr_ucred *credp)
365 struct usr_ucred *newcredp;
367 newcredp = (struct usr_ucred *)afs_osi_Alloc(sizeof(struct usr_ucred));
369 newcredp->cr_ref = 1;
376 struct usr_ucred *newcredp;
378 newcredp = (struct usr_ucred *)afs_osi_Alloc(sizeof(struct usr_ucred));
379 newcredp->cr_ref = 1;
384 usr_crfree(struct usr_ucred *credp)
387 if (credp->cr_ref == 0) {
388 afs_osi_Free((char *)credp, sizeof(struct usr_ucred));
394 usr_crhold(struct usr_ucred *credp)
401 usr_vattr_null(struct usr_vattr *vap)
406 n = sizeof(struct usr_vattr);
414 * Initialize the thread specific data used to simulate the
415 * kernel environment for each thread. The user structure
416 * is stored in the thread specific data.
419 uafs_InitThread(void)
422 struct usr_user *uptr;
425 * initialize the thread specific user structure. Use malloc to
426 * allocate the data block, so pthread_finish can free the buffer
427 * when this thread terminates.
430 (struct usr_user *)malloc(sizeof(struct usr_user) +
431 sizeof(struct usr_ucred));
432 usr_assert(uptr != NULL);
435 uptr->u_procp = afs_global_procp;
436 uptr->u_cred = (struct usr_ucred *)(uptr + 1);
437 *uptr->u_cred = *afs_global_ucredp;
438 st = usr_setspecific(afs_global_u_key, (void *)uptr);
443 * routine to get the user structure from the thread specific data.
444 * this routine is used to implement the global 'u' structure. Initializes
445 * the thread if needed.
448 get_user_struct(void)
450 struct usr_user *uptr;
452 st = usr_getspecific(afs_global_u_key, (void **)&uptr);
456 st = usr_getspecific(afs_global_u_key, (void **)&uptr);
458 usr_assert(uptr != NULL);
464 * Hash an address for the waithash table
466 #define WAITHASH(X) \
467 (((long)(X)^((long)(X)>>4)^((long)(X)<<4))&(OSI_WAITHASH_SIZE-1))
473 afs_osi_Sleep(void *x)
477 int glockOwner = ISAFS_GLOCK();
479 usr_mutex_lock(&osi_waitq_lock);
484 if (osi_waithash_avail == NULL) {
485 waitp = (osi_wait_t *) afs_osi_Alloc(sizeof(osi_wait_t));
486 usr_cond_init(&waitp->cond);
488 waitp = osi_waithash_avail;
489 osi_waithash_avail = osi_waithash_avail->next;
493 DLL_INSERT_TAIL(waitp, osi_waithash_table[index].head,
494 osi_waithash_table[index].tail, next, prev);
495 waitp->expiration = 0;
496 waitp->timedNext = NULL;
497 waitp->timedPrev = NULL;
498 while (waitp->flag == 0) {
499 usr_cond_wait(&waitp->cond, &osi_waitq_lock);
501 DLL_DELETE(waitp, osi_waithash_table[index].head,
502 osi_waithash_table[index].tail, next, prev);
503 waitp->next = osi_waithash_avail;
504 osi_waithash_avail = waitp;
505 usr_mutex_unlock(&osi_waitq_lock);
512 afs_osi_SleepSig(void *x)
519 afs_osi_Wakeup(void *x)
525 usr_mutex_lock(&osi_waitq_lock);
526 waitp = osi_waithash_table[index].head;
528 if (waitp->addr == x && waitp->flag == 0) {
530 usr_cond_signal(&waitp->cond);
534 usr_mutex_unlock(&osi_waitq_lock);
539 afs_osi_Wait(afs_int32 msec, struct afs_osi_WaitHandle *handle, int intok)
545 int glockOwner = ISAFS_GLOCK();
547 tv.tv_sec = msec / 1000;
548 tv.tv_nsec = (msec % 1000) * 1000000;
549 if (handle == NULL) {
553 usr_thread_sleep(&tv);
559 usr_mutex_lock(&osi_waitq_lock);
563 index = WAITHASH((caddr_t) handle);
564 if (osi_waithash_avail == NULL) {
565 waitp = (osi_wait_t *) afs_osi_Alloc(sizeof(osi_wait_t));
566 usr_cond_init(&waitp->cond);
568 waitp = osi_waithash_avail;
569 osi_waithash_avail = osi_waithash_avail->next;
571 waitp->addr = (caddr_t) handle;
573 DLL_INSERT_TAIL(waitp, osi_waithash_table[index].head,
574 osi_waithash_table[index].tail, next, prev);
575 tv.tv_sec += time(NULL);
576 waitp->expiration = tv.tv_sec + ((tv.tv_nsec == 0) ? 0 : 1);
577 DLL_INSERT_TAIL(waitp, osi_timedwait_head, osi_timedwait_tail,
578 timedNext, timedPrev);
579 usr_cond_wait(&waitp->cond, &osi_waitq_lock);
585 DLL_DELETE(waitp, osi_waithash_table[index].head,
586 osi_waithash_table[index].tail, next, prev);
587 DLL_DELETE(waitp, osi_timedwait_head, osi_timedwait_tail, timedNext,
589 waitp->next = osi_waithash_avail;
590 osi_waithash_avail = waitp;
591 usr_mutex_unlock(&osi_waitq_lock);
600 afs_osi_CancelWait(struct afs_osi_WaitHandle *handle)
602 afs_osi_Wakeup(handle);
606 * Netscape NSAPI doesn't have a cond_timed_wait, so we need
607 * to explicitly signal cond_timed_waits when their timers expire
610 afs_osi_CheckTimedWaits(void)
615 curTime = time(NULL);
616 usr_mutex_lock(&osi_waitq_lock);
617 waitp = osi_timedwait_head;
618 while (waitp != NULL) {
619 usr_assert(waitp->expiration != 0);
620 if (waitp->expiration <= curTime) {
622 usr_cond_signal(&waitp->cond);
624 waitp = waitp->timedNext;
626 usr_mutex_unlock(&osi_waitq_lock);
631 * I-node numbers are indeces into a table containing a filename
632 * i-node structure and a vnode structure. When we create an i-node,
633 * we copy the name into the array and initialize enough of the fields
634 * in the inode and vnode structures to get the client to work.
637 struct usr_inode i_node;
640 osi_file_table_t *osi_file_table;
642 int max_osi_files = 0;
645 * Allocate a slot in the file table if there is not one there already,
646 * copy in the file name and kludge up the vnode and inode structures
649 lookupname(char *fnamep, int segflg, int followlink,
650 struct usr_vnode **compvpp)
654 struct usr_inode *ip;
655 struct usr_vnode *vp;
657 /*usr_assert(followlink == 0); */
660 * Assume relative pathnames refer to files in AFS
662 if (*fnamep != '/' || uafs_afsPathName(fnamep) != NULL) {
664 code = uafs_LookupName(fnamep, afs_CurrentDir, compvpp, 0, 0);
669 usr_mutex_lock(&osi_inode_lock);
671 for (i = 0; i < n_osi_files; i++) {
672 if (strcmp(fnamep, osi_file_table[i].name) == 0) {
673 *compvpp = &osi_file_table[i].i_node.i_vnode;
674 (*compvpp)->v_count++;
675 usr_mutex_unlock(&osi_inode_lock);
680 if (n_osi_files == max_osi_files) {
681 usr_mutex_unlock(&osi_inode_lock);
685 osi_file_table[n_osi_files].name = afs_osi_Alloc(strlen(fnamep) + 1);
686 usr_assert(osi_file_table[n_osi_files].name != NULL);
687 strcpy(osi_file_table[n_osi_files].name, fnamep);
688 ip = &osi_file_table[i].i_node;
690 vp->v_data = (caddr_t) ip;
693 ip->i_number = n_osi_files;
695 usr_mutex_unlock(&osi_inode_lock);
701 * open a file given its i-node number
704 osi_UFSOpen(afs_int32 ino)
712 if (ino > n_osi_files) {
718 fp = (struct osi_file *)afs_osi_Alloc(sizeof(struct osi_file));
719 usr_assert(fp != NULL);
720 fp->fd = open(osi_file_table[ino - 1].name, O_RDWR | O_CREAT, 0);
723 afs_osi_Free((char *)fp, sizeof(struct osi_file));
727 rc = fstat(fp->fd, &st);
730 afs_osi_Free((void *)fp, sizeof(struct osi_file));
734 fp->size = st.st_size;
737 fp->vnode = (struct usr_vnode *)fp;
744 osi_UFSClose(struct osi_file *fp)
754 afs_osi_Free((void *)fp, sizeof(struct osi_file));
758 afs_osi_Free((void *)fp, sizeof(struct osi_file));
764 osi_UFSTruncate(struct osi_file *fp, afs_int32 len)
771 rc = ftruncate(fp->fd, len);
783 afs_osi_Read(struct osi_file *fp, int offset, void *buf, afs_int32 len)
793 rc = lseek(fp->fd, offset, SEEK_SET);
795 rc = lseek(fp->fd, fp->offset, SEEK_SET);
803 ret = read(fp->fd, buf, len);
810 rc = fstat(fp->fd, &st);
816 fp->size = st.st_size;
822 afs_osi_Write(struct osi_file *fp, afs_int32 offset, void *buf, afs_int32 len)
832 rc = lseek(fp->fd, offset, SEEK_SET);
834 rc = lseek(fp->fd, fp->offset, SEEK_SET);
842 ret = write(fp->fd, buf, len);
849 rc = fstat(fp->fd, &st);
855 fp->size = st.st_size;
861 afs_osi_Stat(struct osi_file *fp, struct osi_stat *stp)
867 rc = fstat(fp->fd, &st);
873 stp->size = st.st_size;
874 stp->mtime = st.st_mtime;
875 stp->atime = st.st_atime;
884 afs_osi_VOP_RDWR(struct usr_vnode *vnodeP, struct usr_uio *uioP, int rw,
885 int flags, struct usr_ucred *credP)
888 struct osi_file *fp = (struct osi_file *)vnodeP;
891 * We don't support readv/writev.
893 usr_assert(uioP->uio_iovcnt == 1);
894 usr_assert(uioP->uio_resid == uioP->uio_iov[0].iov_len);
896 if (rw == UIO_WRITE) {
897 usr_assert(uioP->uio_fmode == FWRITE);
898 rc = afs_osi_Write(fp, uioP->uio_offset, uioP->uio_iov[0].iov_base,
899 uioP->uio_iov[0].iov_len);
901 usr_assert(uioP->uio_fmode == FREAD);
902 rc = afs_osi_Read(fp, uioP->uio_offset, uioP->uio_iov[0].iov_base,
903 uioP->uio_iov[0].iov_len);
909 uioP->uio_resid -= rc;
910 uioP->uio_offset += rc;
911 uioP->uio_iov[0].iov_base = (char *)(uioP->uio_iov[0].iov_base) + rc;
912 uioP->uio_iov[0].iov_len -= rc;
917 * Use malloc/free routines with check patterns before and after each block
920 static char *afs_check_string1 = "UAFS";
921 static char *afs_check_string2 = "AFS_OSI_";
924 afs_osi_Alloc(size_t size)
930 afs_osi_Free(void *ptr, size_t size)
936 afs_osi_FreeStr(char *ptr)
942 osi_AllocLargeSpace(size_t size)
944 AFS_STATCNT(osi_AllocLargeSpace);
945 return afs_osi_Alloc(size);
949 osi_FreeLargeSpace(void *ptr)
951 AFS_STATCNT(osi_FreeLargeSpace);
952 afs_osi_Free(ptr, 0);
956 osi_AllocSmallSpace(size_t size)
958 AFS_STATCNT(osi_AllocSmallSpace);
959 return afs_osi_Alloc(size);
963 osi_FreeSmallSpace(void *ptr)
965 AFS_STATCNT(osi_FreeSmallSpace);
966 afs_osi_Free(ptr, 0);
972 AFS_STATCNT(shutdown_osi);
977 shutdown_osinet(void)
979 AFS_STATCNT(shutdown_osinet);
984 shutdown_osifile(void)
986 AFS_STATCNT(shutdown_osifile);
991 afs_nfsclient_init(void)
996 shutdown_nfsclnt(void)
1002 afs_osi_Invisible(void)
1008 afs_osi_Visible(void)
1014 osi_GetTime(struct timeval *tv)
1016 gettimeofday(tv, NULL);
1021 osi_SetTime(struct timeval *tv)
1027 osi_Active(struct vcache *avc)
1029 AFS_STATCNT(osi_Active);
1036 afs_osi_MapStrategy(int (*aproc) (), struct usr_buf *bp)
1038 afs_int32 returnCode;
1039 returnCode = (*aproc) (bp);
1044 osi_FlushPages(register struct vcache *avc, struct AFS_UCRED *credp)
1046 ObtainSharedLock(&avc->lock, 555);
1047 if ((hcmp((avc->m.DataVersion), (avc->mapDV)) <= 0)
1048 || ((avc->execsOrWriters > 0) && afs_DirtyPages(avc))) {
1049 ReleaseSharedLock(&avc->lock);
1052 UpgradeSToWLock(&avc->lock, 565);
1053 hset(avc->mapDV, avc->m.DataVersion);
1054 ReleaseWriteLock(&avc->lock);
1059 osi_FlushText_really(register struct vcache *vp)
1061 if (hcmp(vp->m.DataVersion, vp->flushDV) > 0) {
1062 hset(vp->flushDV, vp->m.DataVersion);
1068 osi_SyncVM(struct vcache *avc)
1074 osi_ReleaseVM(struct vcache *avc, int len, struct usr_ucred *credp)
1087 * Allocate the table used to implement psuedo-inodes.
1089 max_osi_files = cacheFiles + 100;
1090 osi_file_table = (osi_file_table_t *)
1091 afs_osi_Alloc(max_osi_files * sizeof(osi_file_table_t));
1092 usr_assert(osi_file_table != NULL);
1094 #ifndef NETSCAPE_NSAPI
1096 * Initialize the mutex and condition variable used to implement
1099 pthread_mutex_init(&usr_sleep_mutex, NULL);
1100 pthread_cond_init(&usr_sleep_cond, NULL);
1101 #endif /* !NETSCAPE_NSAPI */
1104 * Initialize the hash table used for sleep/wakeup
1106 for (i = 0; i < OSI_WAITHASH_SIZE; i++) {
1107 DLL_INIT_LIST(osi_waithash_table[i].head, osi_waithash_table[i].tail);
1109 DLL_INIT_LIST(osi_timedwait_head, osi_timedwait_tail);
1110 osi_waithash_avail = NULL;
1113 * Initialize the AFS file table
1115 for (i = 0; i < MAX_OSI_FILES; i++) {
1116 afs_FileTable[i] = NULL;
1120 * Initialize the global locks
1122 usr_mutex_init(&afs_global_lock);
1123 usr_mutex_init(&rx_global_lock);
1124 usr_mutex_init(&osi_inode_lock);
1125 usr_mutex_init(&osi_waitq_lock);
1126 usr_mutex_init(&osi_authenticate_lock);
1129 * Initialize the AFS OSI credentials
1131 afs_osi_cred = *afs_global_ucredp;
1132 afs_osi_credp = &afs_osi_cred;
1135 /* ParseArgs is now obsolete, being handled by cmd */
1137 /*---------------------------------------------------------------------
1141 * Given the final component of a filename expected to be a data cache file,
1142 * return the integer corresponding to the file. Note: we reject names that
1143 * are not a ``V'' followed by an integer. We also reject those names having
1144 * the right format but lying outside the range [0..cacheFiles-1].
1147 * fname : Char ptr to the filename to parse.
1150 * >= 0 iff the file is really a data cache file numbered from 0 to cacheFiles-1, or
1154 * Nothing interesting.
1158 *------------------------------------------------------------------------*/
1161 GetVFileNumber(char *fname)
1163 int computedVNumber; /*The computed file number we return */
1164 int filenameLen; /*Number of chars in filename */
1165 int currDigit; /*Current digit being processed */
1168 * The filename must have at least two characters, the first of which must be a ``V''
1169 * and the second of which cannot be a zero unless the file is exactly two chars long.
1171 filenameLen = strlen(fname);
1172 if (filenameLen < 2)
1174 if (fname[0] != 'V')
1176 if ((filenameLen > 2) && (fname[1] == '0'))
1180 * Scan through the characters in the given filename, failing immediately if a non-digit
1183 for (currDigit = 1; currDigit < filenameLen; currDigit++)
1184 if (isdigit(fname[currDigit]) == 0)
1188 * All relevant characters are digits. Pull out the decimal number they represent.
1189 * Reject it if it's out of range, otherwise return it.
1191 computedVNumber = atoi(++fname);
1192 if (computedVNumber < cacheFiles)
1193 return (computedVNumber);
1198 /*---------------------------------------------------------------------
1202 * Given a full pathname for a file we need to create for the workstation AFS
1203 * cache, go ahead and create the file.
1206 * fname : Full pathname of file to create.
1209 * 0 iff the file was created,
1213 * The given cache file has been found to be missing.
1217 *------------------------------------------------------------------------*/
1220 CreateCacheFile(char *fname)
1222 static char rn[] = "CreateCacheFile"; /*Routine name */
1223 int cfd; /*File descriptor to AFS cache file */
1224 int closeResult; /*Result of close() */
1227 printf("%s: Creating cache file '%s'\n", rn, fname);
1228 cfd = open(fname, createAndTrunc, ownerRWmode);
1230 printf("%s: Can't create '%s', error return is %d (%d)\n", rn, fname,
1234 closeResult = close(cfd);
1237 ("%s: Can't close newly-created AFS cache file '%s' (code %d)\n",
1245 /*---------------------------------------------------------------------
1249 * Sweep through the AFS cache directory, recording the inode number for
1250 * each valid data cache file there. Also, delete any file that doesn't beint32
1251 * in the cache directory during this sweep, and remember which of the other
1252 * residents of this directory were seen. After the sweep, we create any data
1253 * cache files that were missing.
1256 * vFilesFound : Set to the number of data cache files found.
1259 * 0 if everything went well,
1263 * This routine may be called several times. If the number of data cache files
1264 * found is less than the global cacheFiles, then the caller will need to call it
1265 * again to record the inodes of the missing zero-length data cache files created
1266 * in the previous call.
1269 * Fills up the global pathname_for_V array, may create and/or
1270 * delete files as explained above.
1271 *------------------------------------------------------------------------*/
1274 SweepAFSCache(int *vFilesFound)
1276 static char rn[] = "SweepAFSCache"; /*Routine name */
1277 char fullpn_FileToDelete[1024]; /*File to be deleted from cache */
1278 char *fileToDelete; /*Ptr to last component of above */
1279 DIR *cdirp; /*Ptr to cache directory structure */
1281 struct dirent *currp; /*Current directory entry */
1282 int vFileNum; /*Data cache file's associated number */
1284 if (cacheFlags & AFSCALL_INIT_MEMCACHE) {
1286 printf("%s: Memory Cache, no cache sweep done\n", rn);
1292 printf("%s: Opening cache directory '%s'\n", rn, cacheBaseDir);
1294 if (chmod(cacheBaseDir, 0700)) { /* force it to be 700 */
1295 printf("%s: Can't 'chmod 0700' the cache dir, '%s'.\n", rn,
1299 cdirp = opendir(cacheBaseDir);
1300 if (cdirp == (DIR *) 0) {
1301 printf("%s: Can't open AFS cache directory, '%s'.\n", rn,
1307 * Scan the directory entries, remembering data cache file inodes and the existance
1308 * of other important residents. Delete all files that don't belong here.
1311 sprintf(fullpn_FileToDelete, "%s/", cacheBaseDir);
1312 fileToDelete = fullpn_FileToDelete + strlen(fullpn_FileToDelete);
1314 for (currp = readdir(cdirp); currp; currp = readdir(cdirp)) {
1316 printf("%s: Current directory entry:\n", rn);
1317 printf("\tinode=%d, reclen=%d, name='%s'\n", currp->d_ino,
1318 currp->d_reclen, currp->d_name);
1322 * Guess current entry is for a data cache file.
1324 vFileNum = GetVFileNumber(currp->d_name);
1325 if (vFileNum >= 0) {
1327 * Found a valid data cache filename. Remember this file's name
1328 * and bump the number of files found.
1330 pathname_for_V[vFileNum] =
1331 afs_osi_Alloc(strlen(currp->d_name) + strlen(cacheBaseDir) +
1333 usr_assert(pathname_for_V[vFileNum] != NULL);
1334 sprintf(pathname_for_V[vFileNum], "%s/%s", cacheBaseDir,
1337 } else if (strcmp(currp->d_name, DCACHEFILE) == 0) {
1339 * Found the file holding the dcache entries.
1341 missing_DCacheFile = 0;
1342 } else if (strcmp(currp->d_name, VOLINFOFILE) == 0) {
1344 * Found the file holding the volume info.
1346 missing_VolInfoFile = 0;
1347 } else if (strcmp(currp->d_name, CELLINFOFILE) == 0) {
1348 missing_CellInfoFile = 0;
1349 } else if ((strcmp(currp->d_name, ".") == 0)
1350 || (strcmp(currp->d_name, "..") == 0)
1351 || (strcmp(currp->d_name, "lost+found") == 0)) {
1353 * Don't do anything - this file is legit, and is to be left alone.
1357 * This file doesn't belong in the cache. Nuke it.
1359 sprintf(fileToDelete, "%s", currp->d_name);
1361 printf("%s: Deleting '%s'\n", rn, fullpn_FileToDelete);
1362 if (unlink(fullpn_FileToDelete)) {
1363 printf("%s: Can't unlink '%s', errno is %d\n", rn,
1364 fullpn_FileToDelete, errno);
1370 * Create all the cache files that are missing.
1372 if (missing_DCacheFile) {
1374 printf("%s: Creating '%s'\n", rn, fullpn_DCacheFile);
1375 if (CreateCacheFile(fullpn_DCacheFile))
1376 printf("%s: Can't create '%s'\n", rn, fullpn_DCacheFile);
1378 if (missing_VolInfoFile) {
1380 printf("%s: Creating '%s'\n", rn, fullpn_VolInfoFile);
1381 if (CreateCacheFile(fullpn_VolInfoFile))
1382 printf("%s: Can't create '%s'\n", rn, fullpn_VolInfoFile);
1384 if (missing_CellInfoFile) {
1386 printf("%s: Creating '%s'\n", rn, fullpn_CellInfoFile);
1387 if (CreateCacheFile(fullpn_CellInfoFile))
1388 printf("%s: Can't create '%s'\n", rn, fullpn_CellInfoFile);
1391 if (*vFilesFound < cacheFiles) {
1393 * We came up short on the number of data cache files found. Scan through the inode
1394 * list and create all missing files.
1396 for (vFileNum = 0; vFileNum < cacheFiles; vFileNum++)
1397 if (pathname_for_V[vFileNum] == (AFSD_INO_T) 0) {
1398 sprintf(vFileNumber, "%d", vFileNum);
1400 printf("%s: Creating '%s'\n", rn, fullpn_VFile);
1401 if (CreateCacheFile(fullpn_VFile))
1402 printf("%s: Can't create '%s'\n", rn, fullpn_VFile);
1407 * Close the directory, return success.
1410 printf("%s: Closing cache directory.\n", rn);
1416 ConfigCell(register struct afsconf_cell *aci, void *arock,
1417 struct afsconf_dir *adir)
1419 register int isHomeCell;
1421 afs_int32 cellFlags = 0;
1422 afs_int32 hosts[MAXHOSTSPERCELL];
1424 /* figure out if this is the home cell */
1425 isHomeCell = (strcmp(aci->name, afs_LclCellName) == 0);
1427 cellFlags = 2; /* not home, suid is forbidden */
1429 /* build address list */
1430 for (i = 0; i < MAXHOSTSPERCELL; i++)
1431 memcpy(&hosts[i], &aci->hostAddr[i].sin_addr, sizeof(afs_int32));
1433 if (aci->linkedCell)
1434 cellFlags |= 4; /* Flag that linkedCell arg exists,
1435 * for upwards compatibility */
1437 /* configure one cell */
1438 call_syscall(AFSCALL_CALL, AFSOP_ADDCELL2, (long)hosts, /* server addresses */
1439 (long)aci->name, /* cell name */
1440 (long)cellFlags, /* is this the home cell? */
1441 (long)aci->linkedCell); /* Linked cell, if any */
1446 ConfigCellAlias(struct afsconf_cellalias *aca, void *arock, struct afsconf_dir *adir)
1448 call_syscall(AFSOP_ADDCELLALIAS, (long)aca->aliasName,
1449 (long)aca->realName, 0, 0, 0);
1454 * Set the UDP port number RX uses for UDP datagrams
1457 uafs_SetRxPort(int port)
1459 usr_assert(usr_rx_port == 0);
1465 * Initialize the user space client.
1468 uafs_Init(char *rn, char *mountDirParam, char *confDirParam,
1469 char *cacheBaseDirParam, int cacheBlocksParam, int cacheFilesParam,
1470 int cacheStatEntriesParam, int dCacheSizeParam, int vCacheSizeParam,
1471 int chunkSizeParam, int closeSynchParam, int debugParam,
1472 int nDaemonsParam, int cacheFlagsParam, char *logFile)
1475 struct usr_proc *procp;
1476 struct usr_ucred *ucredp;
1479 int currVFile; /* Current AFS cache file number */
1480 int lookupResult; /* Result of GetLocalCellName() */
1481 int cacheIteration; /* cache verification loop counter */
1482 int vFilesFound; /* Num data cache files found in sweep */
1484 afs_int32 vfs1_type = -1;
1485 struct afs_ioctl iob;
1489 afs_int32 buffer[MAXIPADDRS];
1490 afs_int32 maskbuffer[MAXIPADDRS];
1491 afs_int32 mtubuffer[MAXIPADDRS];
1494 * Use the thread specific data to implement the user structure
1496 usr_keycreate(&afs_global_u_key, free);
1499 * Initialize the global ucred structure
1501 afs_global_ucredp = (struct usr_ucred *)
1502 afs_osi_Alloc(sizeof(struct usr_ucred));
1503 usr_assert(afs_global_ucredp != NULL);
1504 afs_global_ucredp->cr_ref = 1;
1505 afs_global_ucredp->cr_uid = geteuid();
1506 afs_global_ucredp->cr_gid = getegid();
1507 afs_global_ucredp->cr_ruid = getuid();
1508 afs_global_ucredp->cr_rgid = getgid();
1509 afs_global_ucredp->cr_suid = afs_global_ucredp->cr_ruid;
1510 afs_global_ucredp->cr_sgid = afs_global_ucredp->cr_rgid;
1511 st = getgroups(NGROUPS, &afs_global_ucredp->cr_groups[0]);
1512 usr_assert(st >= 0);
1513 afs_global_ucredp->cr_ngroups = (unsigned long)st;
1514 for (i = st; i < NGROUPS; i++) {
1515 afs_global_ucredp->cr_groups[i] = NOGROUP;
1519 * Initialize the global process structure
1521 afs_global_procp = (struct usr_proc *)
1522 afs_osi_Alloc(sizeof(struct usr_proc));
1523 usr_assert(afs_global_procp != NULL);
1524 afs_global_procp->p_pid = getpid();
1525 afs_global_procp->p_ppid = (pid_t) 1;
1526 afs_global_procp->p_ucred = afs_global_ucredp;
1529 * Initialize the AFS mount point, default is '/afs'.
1530 * Strip duplicate/trailing slashes from mount point string.
1531 * afs_mountDirLen is set to strlen(afs_mountDir).
1533 if (mountDirParam) {
1534 sprintf(tbuffer, "%s", mountDirParam);
1536 sprintf(tbuffer, "afs");
1538 afs_mountDir[0] = '/';
1539 afs_mountDirLen = 1;
1540 for (lastchar = '/', p = &tbuffer[0]; *p != '\0'; p++) {
1541 if (lastchar != '/' || *p != '/') {
1542 afs_mountDir[afs_mountDirLen++] = lastchar = *p;
1545 if (lastchar == '/' && afs_mountDirLen > 1)
1547 afs_mountDir[afs_mountDirLen] = '\0';
1548 usr_assert(afs_mountDirLen > 1);
1551 * Initialize cache parameters using the input arguments
1554 cacheBlocks = cacheBlocksParam;
1555 if (cacheFilesParam != 0) {
1556 cacheFiles = cacheFilesParam;
1558 cacheFiles = cacheBlocks / 10;
1560 if (cacheStatEntriesParam != 0) {
1561 cacheStatEntries = cacheStatEntriesParam;
1563 strcpy(cacheBaseDir, cacheBaseDirParam);
1564 if (nDaemonsParam != 0) {
1565 nDaemons = nDaemonsParam;
1569 afsd_verbose = debugParam;
1570 afsd_debug = debugParam;
1571 chunkSize = chunkSizeParam;
1572 if (dCacheSizeParam != 0) {
1573 dCacheSize = dCacheSizeParam;
1575 dCacheSize = cacheFiles / 2;
1577 if (vCacheSizeParam != 0) {
1578 vCacheSize = vCacheSizeParam;
1580 strcpy(confDir, confDirParam);
1581 afsd_CloseSynch = closeSynchParam;
1582 if (cacheFlagsParam >= 0) {
1583 cacheFlags = cacheFlagsParam;
1585 if (cacheFlags & AFSCALL_INIT_MEMCACHE) {
1586 cacheFiles = dCacheSize;
1589 sprintf(fullpn_CacheInfo, "%s/%s", confDir, CACHEINFOFILE);
1590 if (logFile == NULL) {
1591 sprintf(fullpn_AFSLogFile, "%s/%s", confDir, AFSLOGFILE);
1593 strcpy(fullpn_AFSLogFile, logFile);
1596 printf("\n%s: Initializing user space AFS client\n\n", rn);
1597 printf(" mountDir: %s\n", afs_mountDir);
1598 printf(" confDir: %s\n", confDir);
1599 printf(" cacheBaseDir: %s\n", cacheBaseDir);
1600 printf(" cacheBlocks: %d\n", cacheBlocks);
1601 printf(" cacheFiles: %d\n", cacheFiles);
1602 printf(" cacheStatEntries: %d\n", cacheStatEntries);
1603 printf(" dCacheSize: %d\n", dCacheSize);
1604 printf(" vCacheSize: %d\n", vCacheSize);
1605 printf(" chunkSize: %d\n", chunkSize);
1606 printf(" afsd_CloseSynch: %d\n", afsd_CloseSynch);
1607 printf(" afsd_debug/verbose: %d/%d\n", afsd_debug, afsd_verbose);
1608 printf(" nDaemons: %d\n", nDaemons);
1609 printf(" cacheFlags: %d\n", cacheFlags);
1610 printf(" logFile: %s\n", fullpn_AFSLogFile);
1615 * Initialize the AFS client
1620 * Pull out all the configuration info for the workstation's AFS cache and
1621 * the cellular community we're willing to let our users see.
1623 afs_cdir = afsconf_Open(confDir);
1625 printf("afsd: some file missing or bad in %s\n", confDir);
1630 afsconf_GetLocalCell(afs_cdir, afs_LclCellName,
1631 sizeof(afs_LclCellName));
1633 printf("%s: Can't get my home cell name! [Error is %d]\n", rn,
1637 printf("%s: My home cell is '%s'\n", rn, afs_LclCellName);
1640 if ((logfd = fopen(fullpn_AFSLogFile, "r+")) == 0) {
1642 printf("%s: Creating '%s'\n", rn, fullpn_AFSLogFile);
1643 if (CreateCacheFile(fullpn_AFSLogFile)) {
1645 ("%s: Can't create '%s' (You may want to use the -logfile option)\n",
1646 rn, fullpn_AFSLogFile);
1653 * Create and zero the pathname table for the desired cache files.
1655 pathname_for_V = (char **)afs_osi_Alloc(cacheFiles * sizeof(char *));
1656 if (pathname_for_V == NULL) {
1657 printf("%s: malloc() failed for cache file table with %d entries.\n",
1661 memset(pathname_for_V, 0, (cacheFiles * sizeof(char *)));
1663 printf("%s: %d pathname_for_V entries at 0x%x, %d bytes\n", rn,
1664 cacheFiles, pathname_for_V, (cacheFiles * sizeof(AFSD_INO_T)));
1667 * Set up all the pathnames we'll need for later.
1669 sprintf(fullpn_DCacheFile, "%s/%s", cacheBaseDir, DCACHEFILE);
1670 sprintf(fullpn_VolInfoFile, "%s/%s", cacheBaseDir, VOLINFOFILE);
1671 sprintf(fullpn_CellInfoFile, "%s/%s", cacheBaseDir, CELLINFOFILE);
1672 sprintf(fullpn_VFile, "%s/V", cacheBaseDir);
1673 vFileNumber = fullpn_VFile + strlen(fullpn_VFile);
1675 /* initialize AFS callback interface */
1677 /* parse multihomed address files */
1679 st = parseNetFiles((afs_uint32*)buffer,(afs_uint32*) maskbuffer, (afs_uint32*)mtubuffer, MAXIPADDRS, reason,
1680 AFSDIR_CLIENT_NETINFO_FILEPATH,
1681 AFSDIR_CLIENT_NETRESTRICT_FILEPATH);
1683 call_syscall(AFSCALL_CALL, AFSOP_ADVISEADDR, st,
1684 (long)(&buffer[0]), (long)(&maskbuffer[0]),
1685 (long)(&mtubuffer[0]));
1687 printf("ADVISEADDR: Error in specifying interface addresses:%s\n",
1694 * Start the RX listener.
1697 printf("%s: Calling AFSOP_RXLISTENER_DAEMON\n", rn);
1698 fork_syscall(AFSCALL_CALL, AFSOP_RXLISTENER_DAEMON, FALSE, FALSE, FALSE);
1701 printf("%s: Forking rx callback listener.\n", rn);
1703 if (preallocs < cacheStatEntries + 50)
1704 preallocs = cacheStatEntries + 50;
1705 fork_syscall(AFSCALL_CALL, AFSOP_START_RXCALLBACK, preallocs);
1708 * Start the RX event handler.
1711 printf("%s: Calling AFSOP_RXEVENT_DAEMON\n", rn);
1712 fork_syscall(AFSCALL_CALL, AFSOP_RXEVENT_DAEMON, FALSE);
1715 * Set up all the kernel processes needed for AFS.
1719 printf("%s: Initializing AFS daemon.\n", rn);
1720 call_syscall(AFSCALL_CALL, AFSOP_BASIC_INIT, 1, 0, 0, 0);
1723 * Tell the kernel some basic information about the workstation's cache.
1726 printf("%s: Calling AFSOP_CACHEINIT: %d stat cache entries,"
1727 " %d optimum cache files, %d blocks in the cache,"
1728 " flags = 0x%x, dcache entries %d\n", rn, cacheStatEntries,
1729 cacheFiles, cacheBlocks, cacheFlags, dCacheSize);
1730 memset(&cparams, 0, sizeof(cparams));
1731 cparams.cacheScaches = cacheStatEntries;
1732 cparams.cacheFiles = cacheFiles;
1733 cparams.cacheBlocks = cacheBlocks;
1734 cparams.cacheDcaches = dCacheSize;
1735 cparams.cacheVolumes = vCacheSize;
1736 cparams.chunkSize = chunkSize;
1737 cparams.setTimeFlag = FALSE;
1738 cparams.memCacheFlag = cacheFlags;
1739 call_syscall(AFSCALL_CALL, AFSOP_CACHEINIT, (long)&cparams, 0, 0, 0);
1740 if (afsd_CloseSynch)
1741 call_syscall(AFSCALL_CALL, AFSOP_CLOSEWAIT, 0, 0, 0, 0);
1744 * Sweep the workstation AFS cache directory, remembering the inodes of
1745 * valid files and deleting extraneous files. Keep sweeping until we
1746 * have the right number of data cache files or we've swept too many
1750 printf("%s: Sweeping workstation's AFS cache directory.\n", rn);
1752 /* Memory-cache based system doesn't need any of this */
1753 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
1756 if (SweepAFSCache(&vFilesFound)) {
1757 printf("%s: Error on sweep %d of workstation AFS cache \
1758 directory.\n", rn, cacheIteration);
1763 ("%s: %d out of %d data cache files found in sweep %d.\n",
1764 rn, vFilesFound, cacheFiles, cacheIteration);
1765 } while ((vFilesFound < cacheFiles)
1766 && (cacheIteration < MAX_CACHE_LOOPS));
1767 } else if (afsd_verbose)
1768 printf("%s: Using memory cache, not swept\n", rn);
1771 * Pass the kernel the name of the workstation cache file holding the
1775 printf("%s: Calling AFSOP_CACHEINFO: dcache file is '%s'\n", rn,
1777 /* once again, meaningless for a memory-based cache. */
1778 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE))
1779 call_syscall(AFSCALL_CALL, AFSOP_CACHEINFO, (long)fullpn_DCacheFile,
1782 call_syscall(AFSCALL_CALL, AFSOP_CELLINFO, (long)fullpn_CellInfoFile, 0,
1786 * Pass the kernel the name of the workstation cache file holding the
1787 * volume information.
1790 printf("%s: Calling AFSOP_VOLUMEINFO: volume info file is '%s'\n", rn,
1791 fullpn_VolInfoFile);
1792 call_syscall(AFSCALL_CALL, AFSOP_VOLUMEINFO, (long)fullpn_VolInfoFile, 0,
1796 * Pass the kernel the name of the afs logging file holding the volume
1800 printf("%s: Calling AFSOP_AFSLOG: volume info file is '%s'\n", rn,
1802 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) /* ... nor this ... */
1803 call_syscall(AFSCALL_CALL, AFSOP_AFSLOG, (long)fullpn_AFSLogFile, 0,
1807 * Tell the kernel about each cell in the configuration.
1809 afsconf_CellApply(afs_cdir, ConfigCell, NULL);
1810 afsconf_CellAliasApply(afs_cdir, ConfigCellAlias, NULL);
1813 * Set the primary cell name.
1815 call_syscall(AFSCALL_CALL, AFSOP_SET_THISCELL, (long)afs_LclCellName, 0, 0, 0);
1818 printf("%s: Forking AFS daemon.\n", rn);
1819 fork_syscall(AFSCALL_CALL, AFSOP_START_AFS);
1822 printf("%s: Forking check server daemon.\n", rn);
1823 fork_syscall(AFSCALL_CALL, AFSOP_START_CS);
1826 printf("%s: Forking %d background daemons.\n", rn, nDaemons);
1827 for (i = 0; i < nDaemons; i++) {
1828 fork_syscall(AFSCALL_CALL, AFSOP_START_BKG);
1832 printf("%s: Calling AFSOP_ROOTVOLUME with '%s'\n", rn, rootVolume);
1833 call_syscall(AFSCALL_CALL, AFSOP_ROOTVOLUME, (long)rootVolume, 0, 0, 0);
1836 * Give the kernel the names of the AFS files cached on the workstation's
1841 ("%s: Calling AFSOP_CACHEFILES for each of the %d files in '%s'\n",
1842 rn, cacheFiles, cacheBaseDir);
1843 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) /* ... and again ... */
1844 for (currVFile = 0; currVFile < cacheFiles; currVFile++) {
1845 call_syscall(AFSCALL_CALL, AFSOP_CACHEFILE,
1846 (long)pathname_for_V[currVFile], 0, 0, 0);
1849 /*#ifndef NETSCAPE_NSAPI*/
1851 /* this breaks solaris if the kernel-mode client has never been installed,
1852 * and it doesn't seem to work now anyway, so just disable it */
1855 * Copy our tokens from the kernel to the user space client
1857 for (i = 0; i < 200; i++) {
1859 * Get the i'th token from the kernel
1861 memset((void *)&tbuffer[0], 0, sizeof(tbuffer));
1862 memcpy((void *)&tbuffer[0], (void *)&i, sizeof(int));
1864 iob.in_size = sizeof(int);
1866 iob.out_size = sizeof(tbuffer);
1868 #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)
1869 rc = syscall(AFS_SYSCALL, AFSCALL_PIOCTL, 0, _VICEIOCTL(8), &iob, 0);
1870 #elif defined(AFS_USR_SGI_ENV)
1871 rc = syscall(AFS_PIOCTL, 0, _VICEIOCTL(8), &iob, 0);
1872 #else /* AFS_USR_AIX_ENV */
1873 rc = lpioctl(0, _VICEIOCTL(8), &iob, 0);
1876 usr_assert(errno == EDOM || errno == ENOSYS || errno == ERANGE);
1881 * Now pass the token into the user space kernel
1883 rc = uafs_SetTokens(tbuffer, iob.out_size);
1884 usr_assert(rc == 0);
1886 #endif /* !NETSCAPE_NSAPI */
1889 * All the necessary info has been passed into the kernel to run an AFS
1890 * system. Give the kernel our go-ahead.
1893 printf("%s: Calling AFSOP_GO\n", rn);
1894 call_syscall(AFSCALL_CALL, AFSOP_GO, FALSE, 0, 0, 0);
1897 * At this point, we have finished passing the kernel all the info
1898 * it needs to set up the AFS. Mount the AFS root.
1900 printf("%s: All AFS daemons started.\n", rn);
1903 printf("%s: Forking trunc-cache daemon.\n", rn);
1904 fork_syscall(AFSCALL_CALL, AFSOP_START_TRUNCDAEMON);
1907 * Mount the AFS filesystem
1910 rc = afs_mount(&afs_RootVfs, NULL, NULL);
1911 usr_assert(rc == 0);
1912 rc = afs_root(&afs_RootVfs, &afs_RootVnode);
1913 usr_assert(rc == 0);
1917 * initialize the current directory to the AFS root
1919 afs_CurrentDir = afs_RootVnode;
1920 VN_HOLD(afs_CurrentDir);
1933 VN_RELE(afs_CurrentDir);
1934 rc = afs_unmount(&afs_RootVfs);
1935 usr_assert(rc == 0);
1942 * Donate the current thread to the RX server pool.
1945 uafs_RxServerProc(void)
1949 struct rx_call *newcall = NULL;
1951 rxi_MorePackets(2); /* alloc more packets */
1952 threadID = rxi_availProcs++;
1955 sock = OSI_NULLSOCKET;
1956 rxi_ServerProc(threadID, newcall, &sock);
1957 if (sock == OSI_NULLSOCKET) {
1962 rxi_ListenerProc(sock, &threadID, &newcall);
1963 /* assert(threadID != -1); */
1964 /* assert(newcall != NULL); */
1968 struct syscallThreadArgs {
1977 #ifdef NETSCAPE_NSAPI
1979 syscallThread(void *argp)
1980 #else /* NETSCAPE_NSAPI */
1982 syscallThread(void *argp)
1983 #endif /* NETSCAPE_NSAPI */
1986 struct usr_ucred *crp;
1987 struct syscallThreadArgs *sysArgsP = (struct syscallThreadArgs *)argp;
1990 * AFS daemons run authenticated
1992 u.u_viceid = getuid();
1994 crp->cr_uid = getuid();
1995 crp->cr_ruid = getuid();
1996 crp->cr_suid = getuid();
1997 crp->cr_groups[0] = getgid();
1998 crp->cr_ngroups = 1;
1999 for (i = 1; i < NGROUPS; i++) {
2000 crp->cr_groups[i] = NOGROUP;
2003 call_syscall(sysArgsP->syscall, sysArgsP->afscall, sysArgsP->param1,
2004 sysArgsP->param2, sysArgsP->param3, sysArgsP->param4);
2006 afs_osi_Free(argp, -1);
2010 fork_syscall(syscall, afscall, param1, param2, param3, param4)
2011 long syscall, afscall, param1, param2, param3, param4;
2014 struct syscallThreadArgs *sysArgsP;
2016 sysArgsP = (struct syscallThreadArgs *)
2017 afs_osi_Alloc(sizeof(struct syscallThreadArgs));
2018 usr_assert(sysArgsP != NULL);
2019 sysArgsP->syscall = syscall;
2020 sysArgsP->afscall = afscall;
2021 sysArgsP->param1 = param1;
2022 sysArgsP->param2 = param2;
2023 sysArgsP->param3 = param3;
2024 sysArgsP->param4 = param4;
2026 usr_thread_create(&tid, syscallThread, sysArgsP);
2027 usr_thread_detach(tid);
2031 call_syscall(syscall, afscall, param1, param2, param3, param4)
2032 long syscall, afscall, param1, param2, param3, param4;
2044 a.syscall = syscall;
2045 a.afscall = afscall;
2052 u.u_ap = (char *)&a;
2054 code = Afs_syscall();
2059 uafs_SetTokens(char *tbuffer, int tlen)
2062 struct afs_ioctl iob;
2067 iob.out = &outbuf[0];
2068 iob.out_size = sizeof(outbuf);
2069 rc = call_syscall(AFSCALL_PIOCTL, 0, _VICEIOCTL(3), (long)&iob, 0, 0);
2078 uafs_RPCStatsEnableProc(void)
2081 struct afs_ioctl iob;
2084 flag = AFSCALL_RXSTATS_ENABLE;
2085 iob.in = (char *)&flag;
2086 iob.in_size = sizeof(afs_int32);
2089 rc = call_syscall(AFSCALL_PIOCTL, 0, _VICEIOCTL(53), (long)&iob, 0, 0);
2098 uafs_RPCStatsDisableProc(void)
2101 struct afs_ioctl iob;
2104 flag = AFSCALL_RXSTATS_DISABLE;
2105 iob.in = (char *)&flag;
2106 iob.in_size = sizeof(afs_int32);
2109 rc = call_syscall(AFSCALL_PIOCTL, 0, _VICEIOCTL(53), (long)&iob, 0, 0);
2118 uafs_RPCStatsClearProc(void)
2121 struct afs_ioctl iob;
2124 flag = AFSCALL_RXSTATS_CLEAR;
2125 iob.in = (char *)&flag;
2126 iob.in_size = sizeof(afs_int32);
2129 rc = call_syscall(AFSCALL_PIOCTL, 0, _VICEIOCTL(53), (long)&iob, 0, 0);
2138 uafs_RPCStatsEnablePeer(void)
2141 struct afs_ioctl iob;
2144 flag = AFSCALL_RXSTATS_ENABLE;
2145 iob.in = (char *)&flag;
2146 iob.in_size = sizeof(afs_int32);
2149 rc = call_syscall(AFSCALL_PIOCTL, 0, _VICEIOCTL(54), (long)&iob, 0, 0);
2158 uafs_RPCStatsDisablePeer(void)
2161 struct afs_ioctl iob;
2164 flag = AFSCALL_RXSTATS_DISABLE;
2165 iob.in = (char *)&flag;
2166 iob.in_size = sizeof(afs_int32);
2169 rc = call_syscall(AFSCALL_PIOCTL, 0, _VICEIOCTL(54), (long)&iob, 0, 0);
2178 uafs_RPCStatsClearPeer(void)
2181 struct afs_ioctl iob;
2184 flag = AFSCALL_RXSTATS_CLEAR;
2185 iob.in = (char *)&flag;
2186 iob.in_size = sizeof(afs_int32);
2189 rc = call_syscall(AFSCALL_PIOCTL, 0, _VICEIOCTL(54), (long)&iob, 0, 0);
2198 * Lookup a file or directory given its path.
2199 * Call VN_HOLD on the output vnode if successful.
2200 * Returns zero on success, error code on failure.
2202 * Note: Caller must hold the AFS global lock.
2205 uafs_LookupName(char *path, struct usr_vnode *parentVp,
2206 struct usr_vnode **vpp, int follow, int no_eval_mtpt)
2210 struct usr_vnode *vp;
2211 struct usr_vnode *nextVp;
2212 struct usr_vnode *linkVp;
2215 char *nextPathP = NULL;
2220 * Absolute paths must start with the AFS mount point.
2222 if (path[0] != '/') {
2225 path = uafs_afsPathName(path);
2233 * Loop through the path looking for the new directory
2235 tmpPath = afs_osi_Alloc(strlen(path) + 1);
2236 usr_assert(tmpPath != NULL);
2237 strcpy(tmpPath, path);
2240 while (pathP != NULL && *pathP != '\0') {
2241 usr_assert(*pathP != '/');
2244 * terminate the current component and skip over slashes
2246 nextPathP = afs_strchr(pathP, '/');
2247 if (nextPathP != NULL) {
2248 while (*nextPathP == '/') {
2249 *(nextPathP++) = '\0';
2254 * Don't call afs_lookup on non-directories
2256 if (vp->v_type != VDIR) {
2258 afs_osi_Free(tmpPath, strlen(path) + 1);
2262 if (vp == afs_RootVnode && strcmp(pathP, "..") == 0) {
2264 * The AFS root is its own parent
2266 nextVp = afs_RootVnode;
2269 * We need execute permission to search a directory
2271 code = afs_access(VTOAFS(vp), VEXEC, u.u_cred);
2274 afs_osi_Free(tmpPath, strlen(path) + 1);
2279 * lookup the next component in the path, we can release the
2280 * subdirectory since we hold the global lock
2283 #ifdef AFS_WEB_ENHANCEMENTS
2284 if ((nextPathP != NULL && *nextPathP != '\0') || !no_eval_mtpt)
2285 code = afs_lookup(vp, pathP, &nextVp, u.u_cred, 0);
2288 afs_lookup(vp, pathP, &nextVp, u.u_cred,
2291 code = afs_lookup(vp, pathP, &nextVp, u.u_cred, 0);
2292 #endif /* AFS_WEB_ENHANCEMENTS */
2295 afs_osi_Free(tmpPath, strlen(path) + 1);
2301 * Follow symbolic links for parent directories and
2302 * for leaves when the follow flag is set.
2304 if ((nextPathP != NULL && *nextPathP != '\0') || follow) {
2306 while (nextVp->v_type == VLNK) {
2307 if (++linkCount > MAX_OSI_LINKS) {
2310 afs_osi_Free(tmpPath, strlen(path) + 1);
2313 code = uafs_LookupLink(nextVp, vp, &linkVp);
2317 afs_osi_Free(tmpPath, strlen(path) + 1);
2331 * Special case, nextPathP is non-null if pathname ends in slash
2333 if (nextPathP != NULL && vp->v_type != VDIR) {
2335 afs_osi_Free(tmpPath, strlen(path) + 1);
2339 afs_osi_Free(tmpPath, strlen(path) + 1);
2345 * Lookup the target of a symbolic link
2346 * Call VN_HOLD on the output vnode if successful.
2347 * Returns zero on success, error code on failure.
2349 * Note: Caller must hold the AFS global lock.
2352 uafs_LookupLink(struct usr_vnode *vp, struct usr_vnode *parentVp,
2353 struct usr_vnode **vpp)
2358 struct usr_vnode *linkVp;
2360 struct iovec iov[1];
2364 pathP = afs_osi_Alloc(MAX_OSI_PATH + 1);
2365 usr_assert(pathP != NULL);
2368 * set up the uio buffer
2370 iov[0].iov_base = pathP;
2371 iov[0].iov_len = MAX_OSI_PATH + 1;
2372 uio.uio_iov = &iov[0];
2376 uio.uio_fmode = FREAD;
2377 uio.uio_resid = MAX_OSI_PATH + 1;
2380 * Read the link data
2382 code = afs_readlink(vp, &uio, u.u_cred);
2384 afs_osi_Free(pathP, MAX_OSI_PATH + 1);
2387 len = MAX_OSI_PATH + 1 - uio.uio_resid;
2391 * Find the target of the symbolic link
2393 code = uafs_LookupName(pathP, parentVp, &linkVp, 1, 0);
2395 afs_osi_Free(pathP, MAX_OSI_PATH + 1);
2399 afs_osi_Free(pathP, MAX_OSI_PATH + 1);
2405 * Lookup the parent of a file or directory given its path
2406 * Call VN_HOLD on the output vnode if successful.
2407 * Returns zero on success, error code on failure.
2409 * Note: Caller must hold the AFS global lock.
2412 uafs_LookupParent(char *path, struct usr_vnode **vpp)
2417 struct usr_vnode *parentP;
2422 * Absolute path names must start with the AFS mount point.
2425 pathP = uafs_afsPathName(path);
2426 if (pathP == NULL) {
2432 * Find the length of the parent path
2435 while (len > 0 && path[len - 1] == '/') {
2441 while (len > 0 && path[len - 1] != '/') {
2448 pathP = afs_osi_Alloc(len);
2449 usr_assert(pathP != NULL);
2450 memcpy(pathP, path, len - 1);
2451 pathP[len - 1] = '\0';
2454 * look up the parent
2456 code = uafs_LookupName(pathP, afs_CurrentDir, &parentP, 1, 0);
2457 afs_osi_Free(pathP, len);
2461 if (parentP->v_type != VDIR) {
2471 * Return a pointer to the first character in the last component
2475 uafs_LastPath(char *path)
2480 while (len > 0 && path[len - 1] == '/') {
2483 while (len > 0 && path[len - 1] != '/') {
2493 * Set the working directory.
2496 uafs_chdir(char *path)
2500 retval = uafs_chdir_r(path);
2506 uafs_chdir_r(char *path)
2511 code = uafs_LookupName(path, afs_CurrentDir, &dirP, 1, 0);
2516 if (dirP->v_type != VDIR) {
2521 VN_RELE(afs_CurrentDir);
2522 afs_CurrentDir = dirP;
2527 * Create a directory.
2530 uafs_mkdir(char *path, int mode)
2534 retval = uafs_mkdir_r(path, mode);
2540 uafs_mkdir_r(char *path, int mode)
2544 struct vnode *parentP;
2546 struct usr_vattr attrs;
2548 if (uafs_IsRoot(path)) {
2553 * Look up the parent directory.
2555 nameP = uafs_LastPath(path);
2556 if (nameP != NULL) {
2557 code = uafs_LookupParent(path, &parentP);
2563 parentP = afs_CurrentDir;
2569 * Make sure the directory has at least one character
2571 if (*nameP == '\0') {
2578 * Create the directory
2580 usr_vattr_null(&attrs);
2581 attrs.va_type = VREG;
2582 attrs.va_mode = mode;
2583 attrs.va_uid = u.u_cred->cr_uid;
2584 attrs.va_gid = u.u_cred->cr_gid;
2586 code = afs_mkdir(parentP, nameP, &attrs, &dirP, u.u_cred);
2597 * Return 1 if path is the AFS root, otherwise return 0
2600 uafs_IsRoot(char *path)
2602 while (*path == '/' && *(path + 1) == '/') {
2605 if (strncmp(path, afs_mountDir, afs_mountDirLen) != 0) {
2608 path += afs_mountDirLen;
2609 while (*path == '/') {
2612 if (*path != '\0') {
2620 * Note: file name may not end in a slash.
2623 uafs_open(char *path, int flags, int mode)
2627 retval = uafs_open_r(path, flags, mode);
2633 uafs_open_r(char *path, int flags, int mode)
2639 struct usr_vnode *fileP;
2640 struct usr_vnode *dirP;
2641 struct usr_vattr attrs;
2646 if (uafs_IsRoot(path)) {
2647 fileP = afs_RootVnode;
2651 * Look up the parent directory.
2653 nameP = uafs_LastPath(path);
2654 if (nameP != NULL) {
2655 code = uafs_LookupParent(path, &dirP);
2661 dirP = afs_CurrentDir;
2667 * Make sure the filename has at least one character
2669 if (*nameP == '\0') {
2676 * Get the VNODE for this file
2678 if (flags & O_CREAT) {
2679 usr_vattr_null(&attrs);
2680 attrs.va_type = VREG;
2681 attrs.va_mode = mode;
2682 attrs.va_uid = u.u_cred->cr_uid;
2683 attrs.va_gid = u.u_cred->cr_gid;
2684 if (flags & O_TRUNC) {
2690 afs_create(VTOAFS(dirP), nameP, &attrs,
2691 (flags & O_EXCL) ? usr_EXCL : usr_NONEXCL, mode,
2701 code = uafs_LookupName(nameP, dirP, &fileP, 1, 0);
2709 * Check whether we have access to this file
2712 if (flags & (O_RDONLY | O_RDWR)) {
2715 if (flags & (O_WRONLY | O_RDWR)) {
2719 fileMode = VREAD; /* since O_RDONLY is 0 */
2720 code = afs_access(VTOAFS(fileP), fileMode, u.u_cred);
2728 * Get the file attributes, all we need is the size
2730 code = afs_getattr(VTOAFS(fileP), &attrs, u.u_cred);
2740 * Setup the open flags
2743 if (flags & O_TRUNC) {
2744 openFlags |= FTRUNC;
2746 if (flags & O_APPEND) {
2747 openFlags |= FAPPEND;
2749 if (flags & O_SYNC) {
2752 if (flags & O_SYNC) {
2755 if (flags & (O_RDONLY | O_RDWR)) {
2758 if (flags & (O_WRONLY | O_RDWR)) {
2759 openFlags |= FWRITE;
2761 if ((openFlags & (FREAD | FWRITE)) == 0) {
2762 /* O_RDONLY is 0, so ... */
2767 * Truncate if necessary
2769 if ((flags & O_TRUNC) && (attrs.va_size != 0)) {
2770 usr_vattr_null(&attrs);
2771 attrs.va_mask = ATTR_SIZE;
2773 code = afs_setattr(VTOAFS(fileP), &attrs, u.u_cred);
2785 code = afs_open(&vc, openFlags, u.u_cred);
2793 * Put the vnode pointer into the file table
2795 for (fd = 0; fd < MAX_OSI_FILES; fd++) {
2796 if (afs_FileTable[fd] == NULL) {
2797 afs_FileTable[fd] = fileP;
2798 afs_FileFlags[fd] = openFlags;
2799 if (flags & O_APPEND) {
2800 afs_FileOffsets[fd] = attrs.va_size;
2802 afs_FileOffsets[fd] = 0;
2807 if (fd == MAX_OSI_FILES) {
2820 uafs_creat(char *path, int mode)
2823 rc = uafs_open(path, O_CREAT | O_WRONLY | O_TRUNC, mode);
2828 uafs_creat_r(char *path, int mode)
2831 rc = uafs_open_r(path, O_CREAT | O_WRONLY | O_TRUNC, mode);
2839 uafs_write(int fd, char *buf, int len)
2843 retval = uafs_pwrite_r(fd, buf, len, afs_FileOffsets[fd]);
2849 uafs_pwrite(int fd, char *buf, int len, off_t offset)
2853 retval = uafs_pwrite_r(fd, buf, len, offset);
2859 uafs_pwrite_r(int fd, char *buf, int len, off_t offset)
2863 struct iovec iov[1];
2864 struct usr_vnode *fileP;
2867 * Make sure this is an open file
2869 fileP = afs_FileTable[fd];
2870 if (fileP == NULL) {
2876 * set up the uio buffer
2878 iov[0].iov_base = buf;
2879 iov[0].iov_len = len;
2880 uio.uio_iov = &iov[0];
2882 uio.uio_offset = offset;
2884 uio.uio_fmode = FWRITE;
2885 uio.uio_resid = len;
2891 code = afs_write(VTOAFS(fileP), &uio, afs_FileFlags[fd], u.u_cred, 0);
2897 afs_FileOffsets[fd] = uio.uio_offset;
2898 return (len - uio.uio_resid);
2905 uafs_read(int fd, char *buf, int len)
2909 retval = uafs_pread_r(fd, buf, len, afs_FileOffsets[fd]);
2915 uafs_pread(int fd, char *buf, int len, off_t offset)
2919 retval = uafs_pread_r(fd, buf, len, offset);
2925 uafs_pread_r(int fd, char *buf, int len, off_t offset)
2929 struct iovec iov[1];
2930 struct usr_vnode *fileP;
2931 struct usr_buf *bufP;
2934 * Make sure this is an open file
2936 fileP = afs_FileTable[fd];
2937 if (fileP == NULL) {
2943 * set up the uio buffer
2945 iov[0].iov_base = buf;
2946 iov[0].iov_len = len;
2947 uio.uio_iov = &iov[0];
2949 uio.uio_offset = offset;
2951 uio.uio_fmode = FREAD;
2952 uio.uio_resid = len;
2957 code = afs_read(VTOAFS(fileP), &uio, u.u_cred, 0, &bufP, 0);
2963 afs_FileOffsets[fd] = uio.uio_offset;
2964 return (len - uio.uio_resid);
2968 * Copy the attributes of a file into a stat structure.
2970 * NOTE: Caller must hold the global AFS lock.
2973 uafs_GetAttr(struct usr_vnode *vp, struct stat *stats)
2976 struct usr_vattr attrs;
2981 * Get the attributes
2983 code = afs_getattr(VTOAFS(vp), &attrs, u.u_cred);
2989 * Copy the attributes, zero fields that aren't set
2991 memset((void *)stats, 0, sizeof(struct stat));
2993 stats->st_ino = attrs.va_nodeid;
2994 stats->st_mode = attrs.va_mode;
2995 stats->st_nlink = attrs.va_nlink;
2996 stats->st_uid = attrs.va_uid;
2997 stats->st_gid = attrs.va_gid;
2998 stats->st_rdev = attrs.va_rdev;
2999 stats->st_size = attrs.va_size;
3000 stats->st_atime = attrs.va_atime.tv_sec;
3001 stats->st_mtime = attrs.va_mtime.tv_sec;
3002 stats->st_ctime = attrs.va_ctime.tv_sec;
3003 stats->st_blksize = attrs.va_blocksize;
3004 stats->st_blocks = attrs.va_blocks;
3010 * Get the attributes of a file, do follow links
3013 uafs_stat(char *path, struct stat *buf)
3017 retval = uafs_stat_r(path, buf);
3023 uafs_stat_r(char *path, struct stat *buf)
3028 code = uafs_LookupName(path, afs_CurrentDir, &vp, 1, 0);
3033 code = uafs_GetAttr(vp, buf);
3043 * Get the attributes of a file, don't follow links
3046 uafs_lstat(char *path, struct stat *buf)
3050 retval = uafs_lstat_r(path, buf);
3056 uafs_lstat_r(char *path, struct stat *buf)
3061 code = uafs_LookupName(path, afs_CurrentDir, &vp, 0, 0);
3066 code = uafs_GetAttr(vp, buf);
3076 * Get the attributes of an open file
3079 uafs_fstat(int fd, struct stat *buf)
3083 retval = uafs_fstat_r(fd, buf);
3089 uafs_fstat_r(int fd, struct stat *buf)
3094 vp = afs_FileTable[fd];
3099 code = uafs_GetAttr(vp, buf);
3108 * change the permissions on a file
3111 uafs_chmod(char *path, int mode)
3115 retval = uafs_chmod_r(path, mode);
3121 uafs_chmod_r(char *path, int mode)
3125 struct usr_vattr attrs;
3127 code = uafs_LookupName(path, afs_CurrentDir, &vp, 1, 0);
3132 usr_vattr_null(&attrs);
3133 attrs.va_mask = ATTR_MODE;
3134 attrs.va_mode = mode;
3135 code = afs_setattr(VTOAFS(vp), &attrs, u.u_cred);
3145 * change the permissions on an open file
3148 uafs_fchmod(int fd, int mode)
3152 retval = uafs_fchmod_r(fd, mode);
3158 uafs_fchmod_r(int fd, int mode)
3162 struct usr_vattr attrs;
3164 vp = afs_FileTable[fd];
3169 usr_vattr_null(&attrs);
3170 attrs.va_mask = ATTR_MODE;
3171 attrs.va_mode = mode;
3172 code = afs_setattr(VTOAFS(vp), &attrs, u.u_cred);
3184 uafs_truncate(char *path, int length)
3188 retval = uafs_truncate_r(path, length);
3194 uafs_truncate_r(char *path, int length)
3198 struct usr_vattr attrs;
3200 code = uafs_LookupName(path, afs_CurrentDir, &vp, 1, 0);
3205 usr_vattr_null(&attrs);
3206 attrs.va_mask = ATTR_SIZE;
3207 attrs.va_size = length;
3208 code = afs_setattr(VTOAFS(vp), &attrs, u.u_cred);
3218 * truncate an open file
3221 uafs_ftruncate(int fd, int length)
3225 retval = uafs_ftruncate_r(fd, length);
3231 uafs_ftruncate_r(int fd, int length)
3235 struct usr_vattr attrs;
3237 vp = afs_FileTable[fd];
3242 usr_vattr_null(&attrs);
3243 attrs.va_mask = ATTR_SIZE;
3244 attrs.va_size = length;
3245 code = afs_setattr(VTOAFS(vp), &attrs, u.u_cred);
3254 * set the read/write file pointer of an open file
3257 uafs_lseek(int fd, int offset, int whence)
3261 retval = uafs_lseek_r(fd, offset, whence);
3267 uafs_lseek_r(int fd, int offset, int whence)
3271 struct usr_vattr attrs;
3272 struct usr_vnode *vp;
3274 vp = afs_FileTable[fd];
3281 newpos = afs_FileOffsets[fd] + offset;
3287 code = afs_getattr(VTOAFS(vp), &attrs, u.u_cred);
3292 newpos = attrs.va_size + offset;
3302 afs_FileOffsets[fd] = newpos;
3314 retval = uafs_fsync_r(fd);
3320 uafs_fsync_r(int fd)
3323 struct usr_vnode *fileP;
3326 fileP = afs_FileTable[fd];
3327 if (fileP == NULL) {
3332 code = afs_fsync(fileP, u.u_cred);
3349 retval = uafs_close_r(fd);
3355 uafs_close_r(int fd)
3358 struct usr_vnode *fileP;
3360 fileP = afs_FileTable[fd];
3361 if (fileP == NULL) {
3365 afs_FileTable[fd] = NULL;
3367 code = afs_close(fileP, afs_FileFlags[fd], u.u_cred);
3378 * Create a hard link from the source to the target
3379 * Note: file names may not end in a slash.
3382 uafs_link(char *existing, char *new)
3386 retval = uafs_link_r(existing, new);
3392 uafs_link_r(char *existing, char *new)
3395 struct usr_vnode *existP;
3396 struct usr_vnode *dirP;
3399 if (uafs_IsRoot(new)) {
3404 * Look up the existing node.
3406 code = uafs_LookupName(existing, afs_CurrentDir, &existP, 1, 0);
3413 * Look up the parent directory.
3415 nameP = uafs_LastPath(new);
3416 if (nameP != NULL) {
3417 code = uafs_LookupParent(new, &dirP);
3424 dirP = afs_CurrentDir;
3430 * Make sure the filename has at least one character
3432 if (*nameP == '\0') {
3442 code = afs_link(existP, dirP, nameP, u.u_cred);
3453 * Create a symbolic link from the source to the target
3454 * Note: file names may not end in a slash.
3457 uafs_symlink(char *target, char *source)
3461 retval = uafs_symlink_r(target, source);
3467 uafs_symlink_r(char *target, char *source)
3470 struct usr_vnode *dirP;
3471 struct usr_vattr attrs;
3474 if (uafs_IsRoot(source)) {
3479 * Look up the parent directory.
3481 nameP = uafs_LastPath(source);
3482 if (nameP != NULL) {
3483 code = uafs_LookupParent(source, &dirP);
3489 dirP = afs_CurrentDir;
3495 * Make sure the filename has at least one character
3497 if (*nameP == '\0') {
3506 usr_vattr_null(&attrs);
3507 attrs.va_type = VLNK;
3508 attrs.va_mode = 0777;
3509 attrs.va_uid = u.u_cred->cr_uid;
3510 attrs.va_gid = u.u_cred->cr_gid;
3511 code = afs_symlink(dirP, nameP, &attrs, target, u.u_cred);
3521 * Read a symbolic link into the buffer
3524 uafs_readlink(char *path, char *buf, int len)
3528 retval = uafs_readlink_r(path, buf, len);
3534 uafs_readlink_r(char *path, char *buf, int len)
3537 struct usr_vnode *vp;
3539 struct iovec iov[1];
3541 code = uafs_LookupName(path, afs_CurrentDir, &vp, 0, 0);
3547 if (vp->v_type != VLNK) {
3554 * set up the uio buffer
3556 iov[0].iov_base = buf;
3557 iov[0].iov_len = len;
3558 uio.uio_iov = &iov[0];
3562 uio.uio_fmode = FREAD;
3563 uio.uio_resid = len;
3568 code = afs_readlink(vp, &uio, u.u_cred);
3576 * return the number of bytes read
3578 return (len - uio.uio_resid);
3582 * Remove a file (or directory)
3583 * Note: file name may not end in a slash.
3586 uafs_unlink(char *path)
3590 retval = uafs_unlink_r(path);
3596 uafs_unlink_r(char *path)
3600 struct usr_vnode *fileP;
3601 struct usr_vnode *dirP;
3604 if (uafs_IsRoot(path)) {
3609 * Look up the parent directory.
3611 nameP = uafs_LastPath(path);
3612 if (nameP != NULL) {
3613 code = uafs_LookupParent(path, &dirP);
3619 dirP = afs_CurrentDir;
3625 * Make sure the filename has at least one character
3627 if (*nameP == '\0') {
3636 code = afs_remove(dirP, nameP, u.u_cred);
3647 * Rename a file (or directory)
3650 uafs_rename(char *old, char *new)
3654 retval = uafs_rename_r(old, new);
3660 uafs_rename_r(char *old, char *new)
3665 struct usr_vnode *odirP;
3666 struct usr_vnode *ndirP;
3668 if (uafs_IsRoot(new)) {
3673 * Look up the parent directories.
3675 onameP = uafs_LastPath(old);
3676 if (onameP != NULL) {
3677 code = uafs_LookupParent(old, &odirP);
3683 odirP = afs_CurrentDir;
3687 nnameP = uafs_LastPath(new);
3688 if (nnameP != NULL) {
3689 code = uafs_LookupParent(new, &ndirP);
3695 ndirP = afs_CurrentDir;
3701 * Make sure the filename has at least one character
3703 if (*onameP == '\0' || *nnameP == '\0') {
3713 code = afs_rename(odirP, onameP, ndirP, nnameP, u.u_cred);
3725 * Remove a or directory
3726 * Note: file name may not end in a slash.
3729 uafs_rmdir(char *path)
3733 retval = uafs_rmdir_r(path);
3739 uafs_rmdir_r(char *path)
3743 struct usr_vnode *fileP;
3744 struct usr_vnode *dirP;
3747 if (uafs_IsRoot(path)) {
3752 * Look up the parent directory.
3754 nameP = uafs_LastPath(path);
3755 if (nameP != NULL) {
3756 code = uafs_LookupParent(path, &dirP);
3762 dirP = afs_CurrentDir;
3768 * Make sure the directory name has at least one character
3770 if (*nameP == '\0') {
3777 * Remove the directory
3779 code = afs_rmdir(dirP, nameP, u.u_cred);
3790 * Flush a file from the AFS cache
3793 uafs_FlushFile(char *path)
3796 struct afs_ioctl iob;
3804 call_syscall(AFSCALL_PIOCTL, (long)path, _VICEIOCTL(6), (long)&iob, 0,
3815 uafs_FlushFile_r(char *path)
3819 retval = uafs_FlushFile(path);
3828 uafs_opendir(char *path)
3832 retval = uafs_opendir_r(path);
3838 uafs_opendir_r(char *path)
3841 struct usr_vnode *fileP;
3845 * Open the directory for reading
3847 fd = uafs_open_r(path, O_RDONLY, 0);
3852 fileP = afs_FileTable[fd];
3853 if (fileP == NULL) {
3857 if (fileP->v_type != VDIR) {
3864 * Set up the directory structures
3867 (usr_DIR *) afs_osi_Alloc(sizeof(usr_DIR) + USR_DIRSIZE +
3868 sizeof(struct usr_dirent));
3869 usr_assert(dirp != NULL);
3870 dirp->dd_buf = (char *)(dirp + 1);
3880 * Read directory entries into a file system independent format.
3881 * This routine was developed to support AFS cache consistency testing.
3882 * You should use uafs_readdir instead.
3885 uafs_getdents(int fd, struct min_direct *buf, int len)
3889 retval = uafs_getdents_r(fd, buf, len);
3895 uafs_getdents_r(int fd, struct min_direct *buf, int len)
3899 struct usr_vnode *vp;
3900 struct iovec iov[1];
3903 * Make sure this is an open file
3905 vp = afs_FileTable[fd];
3913 * set up the uio buffer
3915 iov[0].iov_base = (char *)buf;
3916 iov[0].iov_len = len;
3917 uio.uio_iov = &iov[0];
3919 uio.uio_offset = afs_FileOffsets[fd];
3921 uio.uio_fmode = FREAD;
3922 uio.uio_resid = len;
3925 * read the next chunk from the directory
3927 code = afs_readdir(vp, &uio, u.u_cred);
3933 afs_FileOffsets[fd] = uio.uio_offset;
3934 return (len - uio.uio_resid);
3938 * read from a directory (names only)
3941 uafs_readdir(usr_DIR * dirp)
3943 struct usr_dirent *retval;
3945 retval = uafs_readdir_r(dirp);
3951 uafs_readdir_r(usr_DIR * dirp)
3957 struct usr_vnode *vp;
3958 struct iovec iov[1];
3959 struct usr_dirent *direntP;
3960 struct min_direct *directP;
3963 * Make sure this is an open file
3965 vp = afs_FileTable[dirp->dd_fd];
3972 * If there are no entries in the stream buffer
3973 * then read another chunk
3975 directP = (struct min_direct *)(dirp->dd_buf + dirp->dd_loc);
3976 if (dirp->dd_size == 0 || directP->d_fileno == 0) {
3978 * set up the uio buffer
3980 iov[0].iov_base = dirp->dd_buf;
3981 iov[0].iov_len = USR_DIRSIZE;
3982 uio.uio_iov = &iov[0];
3984 uio.uio_offset = afs_FileOffsets[dirp->dd_fd];
3986 uio.uio_fmode = FREAD;
3987 uio.uio_resid = USR_DIRSIZE;
3990 * read the next chunk from the directory
3992 code = afs_readdir(vp, &uio, u.u_cred);
3997 afs_FileOffsets[dirp->dd_fd] = uio.uio_offset;
3999 dirp->dd_size = USR_DIRSIZE - iov[0].iov_len;
4001 directP = (struct min_direct *)(dirp->dd_buf + dirp->dd_loc);
4005 * Check for end of file
4007 if (dirp->dd_size == 0 || directP->d_fileno == 0) {
4011 len = ((sizeof(struct min_direct) + directP->d_namlen + 4) & (~3));
4012 usr_assert(len <= dirp->dd_size);
4015 * Copy the next entry into the usr_dirent structure and advance
4017 direntP = (struct usr_dirent *)(dirp->dd_buf + USR_DIRSIZE);
4018 direntP->d_ino = directP->d_fileno;
4019 direntP->d_off = direntP->d_reclen;
4021 sizeof(struct usr_dirent) - MAXNAMLEN + directP->d_namlen + 1;
4022 memcpy(&direntP->d_name[0], (void *)(directP + 1), directP->d_namlen);
4023 direntP->d_name[directP->d_namlen] = '\0';
4024 dirp->dd_loc += len;
4025 dirp->dd_size -= len;
4034 uafs_closedir(usr_DIR * dirp)
4038 retval = uafs_closedir_r(dirp);
4044 uafs_closedir_r(usr_DIR * dirp)
4050 afs_osi_Free((char *)dirp,
4051 sizeof(usr_DIR) + USR_DIRSIZE + sizeof(struct usr_dirent));
4052 rc = uafs_close_r(fd);
4057 * Do AFS authentication
4060 uafs_klog(char *user, char *cell, char *passwd, char **reason)
4063 afs_int32 password_expires = -1;
4065 usr_mutex_lock(&osi_authenticate_lock);
4067 ka_UserAuthenticateGeneral(KA_USERAUTH_VERSION +
4068 KA_USERAUTH_DOSETPAG2, user, NULL, cell,
4069 passwd, 0, &password_expires, 0, reason);
4070 usr_mutex_unlock(&osi_authenticate_lock);
4075 uafs_klog_r(char *user, char *cell, char *passwd, char **reason)
4079 retval = uafs_klog(user, cell, passwd, reason);
4085 * Destroy AFS credentials from the kernel cache
4092 usr_mutex_lock(&osi_authenticate_lock);
4093 code = ktc_ForgetAllTokens();
4094 usr_mutex_unlock(&osi_authenticate_lock);
4103 retval = uafs_unlog();
4109 * Strip the AFS mount point from a pathname string. Return
4110 * NULL if the path is a relative pathname or if the path
4111 * doesn't start with the AFS mount point string.
4114 uafs_afsPathName(char *path)
4123 for (i = 1, p = path + 1; *p != '\0'; p++) {
4124 /* Ignore duplicate slashes */
4125 if (*p == '/' && lastchar == '/')
4127 /* Is this a subdirectory of the AFS mount point? */
4128 if (afs_mountDir[i] == '\0' && *p == '/') {
4129 /* strip leading slashes */
4130 while (*(++p) == '/');
4133 /* Reject paths that are not within AFS */
4134 if (*p != afs_mountDir[i])
4139 /* Is this the AFS mount point? */
4140 if (afs_mountDir[i] == '\0') {
4141 usr_assert(*p == '\0');
4147 #ifdef AFS_WEB_ENHANCEMENTS
4150 * klog but don't allocate a new pag
4153 uafs_klog_nopag(char *user, char *cell, char *passwd, char **reason)
4156 afs_int32 password_expires = -1;
4158 usr_mutex_lock(&osi_authenticate_lock);
4159 code = ka_UserAuthenticateGeneral(KA_USERAUTH_VERSION
4160 /*+KA_USERAUTH_DOSETPAG2 */ , user,
4161 NULL, cell, passwd, 0,
4162 &password_expires, 0, reason);
4163 usr_mutex_unlock(&osi_authenticate_lock);
4168 * uafs_getcellstatus
4169 * get the cell status
4172 uafs_getcellstatus(char *cell, afs_int32 * status)
4175 struct afs_ioctl iob;
4178 iob.in_size = strlen(cell) + 1;
4182 rc = call_syscall(AFSCALL_PIOCTL, /*path */ 0, _VICEIOCTL(35),
4190 *status = (afs_int32) iob.out;
4196 * Get quota of volume associated with path
4199 uafs_getvolquota(char *path, afs_int32 * BlocksInUse, afs_int32 * MaxQuota)
4202 struct afs_ioctl iob;
4203 VolumeStatus *status;
4209 iob.out_size = 1024;
4211 rc = call_syscall(AFSCALL_PIOCTL, (long)path, _VICEIOCTL(4), (long)&iob,
4219 status = (VolumeStatus *) buf;
4220 *BlocksInUse = status->BlocksInUse;
4221 *MaxQuota = status->MaxQuota;
4227 * Set quota of volume associated with path
4230 uafs_setvolquota(char *path, afs_int32 MaxQuota)
4233 struct afs_ioctl iob;
4234 VolumeStatus *status;
4242 memset(buf, 0, sizeof(VolumeStatus));
4243 status = (VolumeStatus *) buf;
4244 status->MaxQuota = MaxQuota;
4245 status->MinQuota = -1;
4247 rc = call_syscall(AFSCALL_PIOCTL, (long)path, _VICEIOCTL(5), (long)&iob,
4259 * uafs_statmountpoint
4260 * Determine whether a dir. is a mount point or not
4261 * return 1 if mount point, 0 if not
4264 uafs_statmountpoint(char *path)
4271 retval = uafs_statmountpoint_r(path);
4277 uafs_statmountpoint_r(char *path)
4282 struct vrequest treq;
4285 code = uafs_LookupName(path, afs_CurrentDir, &vp, 0, 1);
4300 * Get a list of rights for the current user on path.
4303 uafs_getRights(char *path)
4310 code = uafs_LookupName(path, afs_CurrentDir, &vp, 1, 0);
4318 PRSFS_READ | PRSFS_WRITE | PRSFS_INSERT | PRSFS_LOOKUP | PRSFS_DELETE
4319 | PRSFS_LOCK | PRSFS_ADMINISTER;
4321 afs_rights = afs_getRights(vp, afs_rights, u.u_cred);
4326 #endif /* AFS_WEB_ENHANCEMENTS */
4328 #endif /* UKERNEL */