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 int 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;
111 struct usr_ucred *afs_global_ucredp;
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(void)
264 afs_syscall_iincdec(void)
271 afs_syscall_iopen(void)
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 osi_GetTime(struct timeval *tv)
1010 gettimeofday(tv, NULL);
1015 osi_SetTime(struct timeval *tv)
1021 osi_Active(struct vcache *avc)
1023 AFS_STATCNT(osi_Active);
1030 afs_osi_MapStrategy(int (*aproc) (), struct usr_buf *bp)
1032 afs_int32 returnCode;
1033 returnCode = (*aproc) (bp);
1038 osi_FlushPages(register struct vcache *avc, struct AFS_UCRED *credp)
1040 ObtainSharedLock(&avc->lock, 555);
1041 if ((hcmp((avc->m.DataVersion), (avc->mapDV)) <= 0)
1042 || ((avc->execsOrWriters > 0) && afs_DirtyPages(avc))) {
1043 ReleaseSharedLock(&avc->lock);
1046 UpgradeSToWLock(&avc->lock, 565);
1047 hset(avc->mapDV, avc->m.DataVersion);
1048 ReleaseWriteLock(&avc->lock);
1053 osi_FlushText_really(register struct vcache *vp)
1055 if (hcmp(vp->m.DataVersion, vp->flushDV) > 0) {
1056 hset(vp->flushDV, vp->m.DataVersion);
1062 osi_SyncVM(struct vcache *avc)
1068 osi_ReleaseVM(struct vcache *avc, int len, struct usr_ucred *credp)
1081 * Allocate the table used to implement psuedo-inodes.
1083 max_osi_files = cacheFiles + 100;
1084 osi_file_table = (osi_file_table_t *)
1085 afs_osi_Alloc(max_osi_files * sizeof(osi_file_table_t));
1086 usr_assert(osi_file_table != NULL);
1088 #ifndef NETSCAPE_NSAPI
1090 * Initialize the mutex and condition variable used to implement
1093 pthread_mutex_init(&usr_sleep_mutex, NULL);
1094 pthread_cond_init(&usr_sleep_cond, NULL);
1095 #endif /* !NETSCAPE_NSAPI */
1098 * Initialize the hash table used for sleep/wakeup
1100 for (i = 0; i < OSI_WAITHASH_SIZE; i++) {
1101 DLL_INIT_LIST(osi_waithash_table[i].head, osi_waithash_table[i].tail);
1103 DLL_INIT_LIST(osi_timedwait_head, osi_timedwait_tail);
1104 osi_waithash_avail = NULL;
1107 * Initialize the AFS file table
1109 for (i = 0; i < MAX_OSI_FILES; i++) {
1110 afs_FileTable[i] = NULL;
1114 * Initialize the global locks
1116 usr_mutex_init(&afs_global_lock);
1117 usr_mutex_init(&rx_global_lock);
1118 usr_mutex_init(&osi_inode_lock);
1119 usr_mutex_init(&osi_waitq_lock);
1120 usr_mutex_init(&osi_authenticate_lock);
1123 * Initialize the AFS OSI credentials
1125 afs_osi_cred = *afs_global_ucredp;
1126 afs_osi_credp = &afs_osi_cred;
1129 /* ParseArgs is now obsolete, being handled by cmd */
1131 /*---------------------------------------------------------------------
1135 * Given the final component of a filename expected to be a data cache file,
1136 * return the integer corresponding to the file. Note: we reject names that
1137 * are not a ``V'' followed by an integer. We also reject those names having
1138 * the right format but lying outside the range [0..cacheFiles-1].
1141 * fname : Char ptr to the filename to parse.
1144 * >= 0 iff the file is really a data cache file numbered from 0 to cacheFiles-1, or
1148 * Nothing interesting.
1152 *------------------------------------------------------------------------*/
1155 GetVFileNumber(char *fname)
1157 int computedVNumber; /*The computed file number we return */
1158 int filenameLen; /*Number of chars in filename */
1159 int currDigit; /*Current digit being processed */
1162 * The filename must have at least two characters, the first of which must be a ``V''
1163 * and the second of which cannot be a zero unless the file is exactly two chars long.
1165 filenameLen = strlen(fname);
1166 if (filenameLen < 2)
1168 if (fname[0] != 'V')
1170 if ((filenameLen > 2) && (fname[1] == '0'))
1174 * Scan through the characters in the given filename, failing immediately if a non-digit
1177 for (currDigit = 1; currDigit < filenameLen; currDigit++)
1178 if (isdigit(fname[currDigit]) == 0)
1182 * All relevant characters are digits. Pull out the decimal number they represent.
1183 * Reject it if it's out of range, otherwise return it.
1185 computedVNumber = atoi(++fname);
1186 if (computedVNumber < cacheFiles)
1187 return (computedVNumber);
1192 /*---------------------------------------------------------------------
1196 * Given a full pathname for a file we need to create for the workstation AFS
1197 * cache, go ahead and create the file.
1200 * fname : Full pathname of file to create.
1203 * 0 iff the file was created,
1207 * The given cache file has been found to be missing.
1211 *------------------------------------------------------------------------*/
1214 CreateCacheFile(char *fname)
1216 static char rn[] = "CreateCacheFile"; /*Routine name */
1217 int cfd; /*File descriptor to AFS cache file */
1218 int closeResult; /*Result of close() */
1221 printf("%s: Creating cache file '%s'\n", rn, fname);
1222 cfd = open(fname, createAndTrunc, ownerRWmode);
1224 printf("%s: Can't create '%s', error return is %d (%d)\n", rn, fname,
1228 closeResult = close(cfd);
1231 ("%s: Can't close newly-created AFS cache file '%s' (code %d)\n",
1239 /*---------------------------------------------------------------------
1243 * Sweep through the AFS cache directory, recording the inode number for
1244 * each valid data cache file there. Also, delete any file that doesn't beint32
1245 * in the cache directory during this sweep, and remember which of the other
1246 * residents of this directory were seen. After the sweep, we create any data
1247 * cache files that were missing.
1250 * vFilesFound : Set to the number of data cache files found.
1253 * 0 if everything went well,
1257 * This routine may be called several times. If the number of data cache files
1258 * found is less than the global cacheFiles, then the caller will need to call it
1259 * again to record the inodes of the missing zero-length data cache files created
1260 * in the previous call.
1263 * Fills up the global pathname_for_V array, may create and/or
1264 * delete files as explained above.
1265 *------------------------------------------------------------------------*/
1268 SweepAFSCache(int *vFilesFound)
1270 static char rn[] = "SweepAFSCache"; /*Routine name */
1271 char fullpn_FileToDelete[1024]; /*File to be deleted from cache */
1272 char *fileToDelete; /*Ptr to last component of above */
1273 DIR *cdirp; /*Ptr to cache directory structure */
1275 struct dirent *currp; /*Current directory entry */
1276 int vFileNum; /*Data cache file's associated number */
1278 if (cacheFlags & AFSCALL_INIT_MEMCACHE) {
1280 printf("%s: Memory Cache, no cache sweep done\n", rn);
1286 printf("%s: Opening cache directory '%s'\n", rn, cacheBaseDir);
1288 if (chmod(cacheBaseDir, 0700)) { /* force it to be 700 */
1289 printf("%s: Can't 'chmod 0700' the cache dir, '%s'.\n", rn,
1293 cdirp = opendir(cacheBaseDir);
1294 if (cdirp == (DIR *) 0) {
1295 printf("%s: Can't open AFS cache directory, '%s'.\n", rn,
1301 * Scan the directory entries, remembering data cache file inodes and the existance
1302 * of other important residents. Delete all files that don't belong here.
1305 sprintf(fullpn_FileToDelete, "%s/", cacheBaseDir);
1306 fileToDelete = fullpn_FileToDelete + strlen(fullpn_FileToDelete);
1308 for (currp = readdir(cdirp); currp; currp = readdir(cdirp)) {
1310 printf("%s: Current directory entry:\n", rn);
1311 printf("\tinode=%d, reclen=%d, name='%s'\n", currp->d_ino,
1312 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)
1469 struct usr_proc *procp;
1470 struct usr_ucred *ucredp;
1473 int currVFile; /* Current AFS cache file number */
1474 int lookupResult; /* Result of GetLocalCellName() */
1475 int cacheIteration; /* cache verification loop counter */
1476 int vFilesFound; /* Num data cache files found in sweep */
1478 afs_int32 vfs1_type = -1;
1479 struct afs_ioctl iob;
1483 afs_int32 buffer[MAXIPADDRS];
1484 afs_int32 maskbuffer[MAXIPADDRS];
1485 afs_int32 mtubuffer[MAXIPADDRS];
1488 * Use the thread specific data to implement the user structure
1490 usr_keycreate(&afs_global_u_key, free);
1493 * Initialize the global ucred structure
1495 afs_global_ucredp = (struct usr_ucred *)
1496 afs_osi_Alloc(sizeof(struct usr_ucred));
1497 usr_assert(afs_global_ucredp != NULL);
1498 afs_global_ucredp->cr_ref = 1;
1499 afs_global_ucredp->cr_uid = geteuid();
1500 afs_global_ucredp->cr_gid = getegid();
1501 afs_global_ucredp->cr_ruid = getuid();
1502 afs_global_ucredp->cr_rgid = getgid();
1503 afs_global_ucredp->cr_suid = afs_global_ucredp->cr_ruid;
1504 afs_global_ucredp->cr_sgid = afs_global_ucredp->cr_rgid;
1505 st = getgroups(NGROUPS, &afs_global_ucredp->cr_groups[0]);
1506 usr_assert(st >= 0);
1507 afs_global_ucredp->cr_ngroups = (unsigned long)st;
1508 for (i = st; i < NGROUPS; i++) {
1509 afs_global_ucredp->cr_groups[i] = NOGROUP;
1513 * Initialize the global process structure
1515 afs_global_procp = (struct usr_proc *)
1516 afs_osi_Alloc(sizeof(struct usr_proc));
1517 usr_assert(afs_global_procp != NULL);
1518 afs_global_procp->p_pid = getpid();
1519 afs_global_procp->p_ppid = (pid_t) 1;
1520 afs_global_procp->p_ucred = afs_global_ucredp;
1523 * Initialize the AFS mount point, default is '/afs'.
1524 * Strip duplicate/trailing slashes from mount point string.
1525 * afs_mountDirLen is set to strlen(afs_mountDir).
1527 if (mountDirParam) {
1528 sprintf(tbuffer, "%s", mountDirParam);
1530 sprintf(tbuffer, "afs");
1532 afs_mountDir[0] = '/';
1533 afs_mountDirLen = 1;
1534 for (lastchar = '/', p = &tbuffer[0]; *p != '\0'; p++) {
1535 if (lastchar != '/' || *p != '/') {
1536 afs_mountDir[afs_mountDirLen++] = lastchar = *p;
1539 if (lastchar == '/' && afs_mountDirLen > 1)
1541 afs_mountDir[afs_mountDirLen] = '\0';
1542 usr_assert(afs_mountDirLen > 1);
1545 * Initialize cache parameters using the input arguments
1548 cacheBlocks = cacheBlocksParam;
1549 if (cacheFilesParam != 0) {
1550 cacheFiles = cacheFilesParam;
1552 cacheFiles = cacheBlocks / 10;
1554 if (cacheStatEntriesParam != 0) {
1555 cacheStatEntries = cacheStatEntriesParam;
1557 strcpy(cacheBaseDir, cacheBaseDirParam);
1558 if (nDaemons != 0) {
1559 nDaemons = nDaemonsParam;
1563 afsd_verbose = debugParam;
1564 afsd_debug = debugParam;
1565 chunkSize = chunkSizeParam;
1566 if (dCacheSizeParam != 0) {
1567 dCacheSize = dCacheSizeParam;
1569 dCacheSize = cacheFiles / 2;
1571 if (vCacheSizeParam != 0) {
1572 vCacheSize = vCacheSizeParam;
1574 strcpy(confDir, confDirParam);
1575 afsd_CloseSynch = closeSynchParam;
1576 if (cacheFlagsParam >= 0) {
1577 cacheFlags = cacheFlagsParam;
1579 if (cacheFlags & AFSCALL_INIT_MEMCACHE) {
1580 cacheFiles = dCacheSize;
1583 sprintf(fullpn_CacheInfo, "%s/%s", confDir, CACHEINFOFILE);
1584 if (logFile == NULL) {
1585 sprintf(fullpn_AFSLogFile, "%s/%s", confDir, AFSLOGFILE);
1587 strcpy(fullpn_AFSLogFile, logFile);
1590 printf("\n%s: Initializing user space AFS client\n\n", rn);
1591 printf(" mountDir: %s\n", afs_mountDir);
1592 printf(" confDir: %s\n", confDir);
1593 printf(" cacheBaseDir: %s\n", cacheBaseDir);
1594 printf(" cacheBlocks: %d\n", cacheBlocks);
1595 printf(" cacheFiles: %d\n", cacheFiles);
1596 printf(" cacheStatEntries: %d\n", cacheStatEntries);
1597 printf(" dCacheSize: %d\n", dCacheSize);
1598 printf(" vCacheSize: %d\n", vCacheSize);
1599 printf(" chunkSize: %d\n", chunkSize);
1600 printf(" afsd_CloseSynch: %d\n", afsd_CloseSynch);
1601 printf(" afsd_debug/verbose: %d/%d\n", afsd_debug, afsd_verbose);
1602 printf(" nDaemons: %d\n", nDaemons);
1603 printf(" cacheFlags: %d\n", cacheFlags);
1604 printf(" logFile: %s\n", fullpn_AFSLogFile);
1609 * Initialize the AFS client
1614 * Pull out all the configuration info for the workstation's AFS cache and
1615 * the cellular community we're willing to let our users see.
1617 afs_cdir = afsconf_Open(confDir);
1619 printf("afsd: some file missing or bad in %s\n", confDir);
1624 afsconf_GetLocalCell(afs_cdir, afs_LclCellName,
1625 sizeof(afs_LclCellName));
1627 printf("%s: Can't get my home cell name! [Error is %d]\n", rn,
1631 printf("%s: My home cell is '%s'\n", rn, afs_LclCellName);
1635 * Set the primary cell name.
1637 call_syscall(AFSOP_SET_THISCELL, (long)afs_LclCellName, 0, 0, 0, 0);
1639 if ((logfd = fopen(fullpn_AFSLogFile, "r+")) == 0) {
1641 printf("%s: Creating '%s'\n", rn, fullpn_AFSLogFile);
1642 if (CreateCacheFile(fullpn_AFSLogFile)) {
1644 ("%s: Can't create '%s' (You may want to use the -logfile option)\n",
1645 rn, fullpn_AFSLogFile);
1652 * Create and zero the pathname table for the desired cache files.
1654 pathname_for_V = (char **)afs_osi_Alloc(cacheFiles * sizeof(char *));
1655 if (pathname_for_V == NULL) {
1656 printf("%s: malloc() failed for cache file table with %d entries.\n",
1660 memset(pathname_for_V, 0, (cacheFiles * sizeof(char *)));
1662 printf("%s: %d pathname_for_V entries at 0x%x, %d bytes\n", rn,
1663 cacheFiles, pathname_for_V, (cacheFiles * sizeof(AFSD_INO_T)));
1666 * Set up all the pathnames we'll need for later.
1668 sprintf(fullpn_DCacheFile, "%s/%s", cacheBaseDir, DCACHEFILE);
1669 sprintf(fullpn_VolInfoFile, "%s/%s", cacheBaseDir, VOLINFOFILE);
1670 sprintf(fullpn_CellInfoFile, "%s/%s", cacheBaseDir, CELLINFOFILE);
1671 sprintf(fullpn_VFile, "%s/V", cacheBaseDir);
1672 vFileNumber = fullpn_VFile + strlen(fullpn_VFile);
1675 * Start the RX listener.
1678 printf("%s: Calling AFSOP_RXLISTENER_DAEMON\n", rn);
1679 fork_syscall(AFSCALL_CALL, AFSOP_RXLISTENER_DAEMON, FALSE, FALSE, FALSE);
1682 * Start the RX event handler.
1685 printf("%s: Calling AFSOP_RXEVENT_DAEMON\n", rn);
1686 fork_syscall(AFSCALL_CALL, AFSOP_RXEVENT_DAEMON, FALSE);
1689 * Set up all the kernel processes needed for AFS.
1692 /* initialize AFS callback interface */
1694 /* parse multihomed address files */
1696 st = parseNetFiles((afs_uint32*)buffer,(afs_uint32*) maskbuffer, (afs_uint32*)mtubuffer, MAXIPADDRS, reason,
1697 AFSDIR_CLIENT_NETINFO_FILEPATH,
1698 AFSDIR_CLIENT_NETRESTRICT_FILEPATH);
1700 call_syscall(AFSCALL_CALL, AFSOP_ADVISEADDR, st,
1701 (long)(&buffer[0]), (long)(&maskbuffer[0]),
1702 (long)(&mtubuffer[0]));
1704 printf("ADVISEADDR: Error in specifying interface addresses:%s\n",
1711 printf("%s: Forking rx callback listener.\n", rn);
1713 if (preallocs < cacheStatEntries + 50)
1714 preallocs = cacheStatEntries + 50;
1715 fork_syscall(AFSCALL_CALL, AFSOP_START_RXCALLBACK, preallocs);
1718 printf("%s: Initializing AFS daemon.\n", rn);
1719 call_syscall(AFSCALL_CALL, AFSOP_BASIC_INIT, 1, 0, 0, 0);
1722 * Tell the kernel some basic information about the workstation's cache.
1725 printf("%s: Calling AFSOP_CACHEINIT: %d stat cache entries,"
1726 " %d optimum cache files, %d blocks in the cache,"
1727 " flags = 0x%x, dcache entries %d\n", rn, cacheStatEntries,
1728 cacheFiles, cacheBlocks, cacheFlags, dCacheSize);
1729 memset(&cparams, 0, sizeof(cparams));
1730 cparams.cacheScaches = cacheStatEntries;
1731 cparams.cacheFiles = cacheFiles;
1732 cparams.cacheBlocks = cacheBlocks;
1733 cparams.cacheDcaches = dCacheSize;
1734 cparams.cacheVolumes = vCacheSize;
1735 cparams.chunkSize = chunkSize;
1736 cparams.setTimeFlag = FALSE;
1737 cparams.memCacheFlag = cacheFlags;
1738 call_syscall(AFSCALL_CALL, AFSOP_CACHEINIT, (long)&cparams, 0, 0, 0);
1739 if (afsd_CloseSynch)
1740 call_syscall(AFSCALL_CALL, AFSOP_CLOSEWAIT, 0, 0, 0, 0);
1743 * Sweep the workstation AFS cache directory, remembering the inodes of
1744 * valid files and deleting extraneous files. Keep sweeping until we
1745 * have the right number of data cache files or we've swept too many
1749 printf("%s: Sweeping workstation's AFS cache directory.\n", rn);
1751 /* Memory-cache based system doesn't need any of this */
1752 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
1755 if (SweepAFSCache(&vFilesFound)) {
1756 printf("%s: Error on sweep %d of workstation AFS cache \
1757 directory.\n", rn, cacheIteration);
1762 ("%s: %d out of %d data cache files found in sweep %d.\n",
1763 rn, vFilesFound, cacheFiles, cacheIteration);
1764 } while ((vFilesFound < cacheFiles)
1765 && (cacheIteration < MAX_CACHE_LOOPS));
1766 } else if (afsd_verbose)
1767 printf("%s: Using memory cache, not swept\n", rn);
1770 * Pass the kernel the name of the workstation cache file holding the
1774 printf("%s: Calling AFSOP_CACHEINFO: dcache file is '%s'\n", rn,
1776 /* once again, meaningless for a memory-based cache. */
1777 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE))
1778 call_syscall(AFSCALL_CALL, AFSOP_CACHEINFO, (long)fullpn_DCacheFile,
1781 call_syscall(AFSCALL_CALL, AFSOP_CELLINFO, (long)fullpn_CellInfoFile, 0,
1785 * Pass the kernel the name of the workstation cache file holding the
1786 * volume information.
1789 printf("%s: Calling AFSOP_VOLUMEINFO: volume info file is '%s'\n", rn,
1790 fullpn_VolInfoFile);
1791 call_syscall(AFSCALL_CALL, AFSOP_VOLUMEINFO, (long)fullpn_VolInfoFile, 0,
1795 * Pass the kernel the name of the afs logging file holding the volume
1799 printf("%s: Calling AFSOP_AFSLOG: volume info file is '%s'\n", rn,
1801 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) /* ... nor this ... */
1802 call_syscall(AFSCALL_CALL, AFSOP_AFSLOG, (long)fullpn_AFSLogFile, 0,
1806 * Tell the kernel about each cell in the configuration.
1808 afsconf_CellApply(afs_cdir, ConfigCell, NULL);
1809 afsconf_CellAliasApply(afs_cdir, ConfigCellAlias, NULL);
1812 printf("%s: Forking AFS daemon.\n", rn);
1813 fork_syscall(AFSCALL_CALL, AFSOP_START_AFS);
1816 printf("%s: Forking check server daemon.\n", rn);
1817 fork_syscall(AFSCALL_CALL, AFSOP_START_CS);
1820 printf("%s: Forking %d background daemons.\n", rn, nDaemons);
1821 for (i = 0; i < nDaemons; i++) {
1822 fork_syscall(AFSCALL_CALL, AFSOP_START_BKG);
1826 printf("%s: Calling AFSOP_ROOTVOLUME with '%s'\n", rn, rootVolume);
1827 call_syscall(AFSCALL_CALL, AFSOP_ROOTVOLUME, (long)rootVolume, 0, 0, 0);
1830 * Give the kernel the names of the AFS files cached on the workstation's
1835 ("%s: Calling AFSOP_CACHEFILES for each of the %d files in '%s'\n",
1836 rn, cacheFiles, cacheBaseDir);
1837 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) /* ... and again ... */
1838 for (currVFile = 0; currVFile < cacheFiles; currVFile++) {
1839 call_syscall(AFSCALL_CALL, AFSOP_CACHEFILE,
1840 (long)pathname_for_V[currVFile], 0, 0, 0);
1843 #ifndef NETSCAPE_NSAPI
1845 * Copy our tokens from the kernel to the user space client
1847 for (i = 0; i < 200; i++) {
1849 * Get the i'th token from the kernel
1851 memset((void *)&tbuffer[0], 0, sizeof(tbuffer));
1852 memcpy((void *)&tbuffer[0], (void *)&i, sizeof(int));
1854 iob.in_size = sizeof(int);
1856 iob.out_size = sizeof(tbuffer);
1858 #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)
1859 rc = syscall(AFS_SYSCALL, AFSCALL_PIOCTL, 0, _VICEIOCTL(8), &iob, 0);
1860 #elif defined(AFS_USR_SGI_ENV)
1861 rc = syscall(AFS_PIOCTL, 0, _VICEIOCTL(8), &iob, 0);
1862 #else /* AFS_USR_AIX_ENV */
1863 rc = lpioctl(0, _VICEIOCTL(8), &iob, 0);
1866 usr_assert(errno == EDOM || errno == ENOSYS);
1871 * Now pass the token into the user space kernel
1873 rc = uafs_SetTokens(tbuffer, iob.out_size);
1874 usr_assert(rc == 0);
1876 #endif /* !NETSCAPE_NSAPI */
1879 * All the necessary info has been passed into the kernel to run an AFS
1880 * system. Give the kernel our go-ahead.
1883 printf("%s: Calling AFSOP_GO\n", rn);
1884 call_syscall(AFSCALL_CALL, AFSOP_GO, FALSE, 0, 0, 0);
1887 * At this point, we have finished passing the kernel all the info
1888 * it needs to set up the AFS. Mount the AFS root.
1890 printf("%s: All AFS daemons started.\n", rn);
1893 printf("%s: Forking trunc-cache daemon.\n", rn);
1894 fork_syscall(AFSCALL_CALL, AFSOP_START_TRUNCDAEMON);
1897 * Mount the AFS filesystem
1900 rc = afs_mount(&afs_RootVfs, NULL, NULL);
1901 usr_assert(rc == 0);
1902 rc = afs_root(&afs_RootVfs, &afs_RootVnode);
1903 usr_assert(rc == 0);
1907 * initialize the current directory to the AFS root
1909 afs_CurrentDir = afs_RootVnode;
1910 VN_HOLD(afs_CurrentDir);
1923 VN_RELE(afs_CurrentDir);
1924 rc = afs_unmount(&afs_RootVfs);
1925 usr_assert(rc == 0);
1932 * Donate the current thread to the RX server pool.
1935 uafs_RxServerProc(void)
1939 struct rx_call *newcall = NULL;
1941 rxi_MorePackets(2); /* alloc more packets */
1942 threadID = rxi_availProcs++;
1945 sock = OSI_NULLSOCKET;
1946 rxi_ServerProc(threadID, newcall, &sock);
1947 if (sock == OSI_NULLSOCKET) {
1952 rxi_ListenerProc(sock, &threadID, &newcall);
1953 /* assert(threadID != -1); */
1954 /* assert(newcall != NULL); */
1958 struct syscallThreadArgs {
1967 #ifdef NETSCAPE_NSAPI
1969 syscallThread(void *argp)
1970 #else /* NETSCAPE_NSAPI */
1972 syscallThread(void *argp)
1973 #endif /* NETSCAPE_NSAPI */
1976 struct usr_ucred *crp;
1977 struct syscallThreadArgs *sysArgsP = (struct syscallThreadArgs *)argp;
1980 * AFS daemons run authenticated
1982 u.u_viceid = getuid();
1984 crp->cr_uid = getuid();
1985 crp->cr_ruid = getuid();
1986 crp->cr_suid = getuid();
1987 crp->cr_groups[0] = getgid();
1988 crp->cr_ngroups = 1;
1989 for (i = 1; i < NGROUPS; i++) {
1990 crp->cr_groups[i] = NOGROUP;
1993 call_syscall(sysArgsP->syscall, sysArgsP->afscall, sysArgsP->param1,
1994 sysArgsP->param2, sysArgsP->param3, sysArgsP->param4);
1996 afs_osi_Free(argp, -1);
2000 fork_syscall(syscall, afscall, param1, param2, param3, param4)
2001 long syscall, afscall, param1, param2, param3, param4;
2004 struct syscallThreadArgs *sysArgsP;
2006 sysArgsP = (struct syscallThreadArgs *)
2007 afs_osi_Alloc(sizeof(struct syscallThreadArgs));
2008 usr_assert(sysArgsP != NULL);
2009 sysArgsP->syscall = syscall;
2010 sysArgsP->afscall = afscall;
2011 sysArgsP->param1 = param1;
2012 sysArgsP->param2 = param2;
2013 sysArgsP->param3 = param3;
2014 sysArgsP->param4 = param4;
2016 usr_thread_create(&tid, syscallThread, sysArgsP);
2017 usr_thread_detach(tid);
2021 call_syscall(syscall, afscall, param1, param2, param3, param4)
2022 long syscall, afscall, param1, param2, param3, param4;
2034 a.syscall = syscall;
2035 a.afscall = afscall;
2042 u.u_ap = (char *)&a;
2044 code = Afs_syscall();
2049 uafs_SetTokens(char *tbuffer, int tlen)
2052 struct afs_ioctl iob;
2057 iob.out = &outbuf[0];
2058 iob.out_size = sizeof(outbuf);
2059 rc = call_syscall(AFSCALL_PIOCTL, 0, _VICEIOCTL(3), (long)&iob, 0, 0);
2068 uafs_RPCStatsEnableProc(void)
2071 struct afs_ioctl iob;
2074 flag = AFSCALL_RXSTATS_ENABLE;
2075 iob.in = (char *)&flag;
2076 iob.in_size = sizeof(afs_int32);
2079 rc = call_syscall(AFSCALL_PIOCTL, 0, _VICEIOCTL(53), (long)&iob, 0, 0);
2088 uafs_RPCStatsDisableProc(void)
2091 struct afs_ioctl iob;
2094 flag = AFSCALL_RXSTATS_DISABLE;
2095 iob.in = (char *)&flag;
2096 iob.in_size = sizeof(afs_int32);
2099 rc = call_syscall(AFSCALL_PIOCTL, 0, _VICEIOCTL(53), (long)&iob, 0, 0);
2108 uafs_RPCStatsClearProc(void)
2111 struct afs_ioctl iob;
2114 flag = AFSCALL_RXSTATS_CLEAR;
2115 iob.in = (char *)&flag;
2116 iob.in_size = sizeof(afs_int32);
2119 rc = call_syscall(AFSCALL_PIOCTL, 0, _VICEIOCTL(53), (long)&iob, 0, 0);
2128 uafs_RPCStatsEnablePeer(void)
2131 struct afs_ioctl iob;
2134 flag = AFSCALL_RXSTATS_ENABLE;
2135 iob.in = (char *)&flag;
2136 iob.in_size = sizeof(afs_int32);
2139 rc = call_syscall(AFSCALL_PIOCTL, 0, _VICEIOCTL(54), (long)&iob, 0, 0);
2148 uafs_RPCStatsDisablePeer(void)
2151 struct afs_ioctl iob;
2154 flag = AFSCALL_RXSTATS_DISABLE;
2155 iob.in = (char *)&flag;
2156 iob.in_size = sizeof(afs_int32);
2159 rc = call_syscall(AFSCALL_PIOCTL, 0, _VICEIOCTL(54), (long)&iob, 0, 0);
2168 uafs_RPCStatsClearPeer(void)
2171 struct afs_ioctl iob;
2174 flag = AFSCALL_RXSTATS_CLEAR;
2175 iob.in = (char *)&flag;
2176 iob.in_size = sizeof(afs_int32);
2179 rc = call_syscall(AFSCALL_PIOCTL, 0, _VICEIOCTL(54), (long)&iob, 0, 0);
2188 * Lookup a file or directory given its path.
2189 * Call VN_HOLD on the output vnode if successful.
2190 * Returns zero on success, error code on failure.
2192 * Note: Caller must hold the AFS global lock.
2195 uafs_LookupName(char *path, struct usr_vnode *parentVp,
2196 struct usr_vnode **vpp, int follow, int no_eval_mtpt)
2200 struct usr_vnode *vp;
2201 struct usr_vnode *nextVp;
2202 struct usr_vnode *linkVp;
2205 char *nextPathP = NULL;
2210 * Absolute paths must start with the AFS mount point.
2212 if (path[0] != '/') {
2215 path = uafs_afsPathName(path);
2223 * Loop through the path looking for the new directory
2225 tmpPath = afs_osi_Alloc(strlen(path) + 1);
2226 usr_assert(tmpPath != NULL);
2227 strcpy(tmpPath, path);
2230 while (pathP != NULL && *pathP != '\0') {
2231 usr_assert(*pathP != '/');
2234 * terminate the current component and skip over slashes
2236 nextPathP = afs_strchr(pathP, '/');
2237 if (nextPathP != NULL) {
2238 while (*nextPathP == '/') {
2239 *(nextPathP++) = '\0';
2244 * Don't call afs_lookup on non-directories
2246 if (vp->v_type != VDIR) {
2248 afs_osi_Free(tmpPath, strlen(path) + 1);
2252 if (vp == afs_RootVnode && strcmp(pathP, "..") == 0) {
2254 * The AFS root is its own parent
2256 nextVp = afs_RootVnode;
2259 * We need execute permission to search a directory
2261 code = afs_access(VTOAFS(vp), VEXEC, u.u_cred);
2264 afs_osi_Free(tmpPath, strlen(path) + 1);
2269 * lookup the next component in the path, we can release the
2270 * subdirectory since we hold the global lock
2273 #ifdef AFS_WEB_ENHANCEMENTS
2274 if ((nextPathP != NULL && *nextPathP != '\0') || !no_eval_mtpt)
2275 code = afs_lookup(vp, pathP, &nextVp, u.u_cred, 0);
2278 afs_lookup(vp, pathP, &nextVp, u.u_cred,
2281 code = afs_lookup(vp, pathP, &nextVp, u.u_cred, 0);
2282 #endif /* AFS_WEB_ENHANCEMENTS */
2285 afs_osi_Free(tmpPath, strlen(path) + 1);
2291 * Follow symbolic links for parent directories and
2292 * for leaves when the follow flag is set.
2294 if ((nextPathP != NULL && *nextPathP != '\0') || follow) {
2296 while (nextVp->v_type == VLNK) {
2297 if (++linkCount > MAX_OSI_LINKS) {
2300 afs_osi_Free(tmpPath, strlen(path) + 1);
2303 code = uafs_LookupLink(nextVp, vp, &linkVp);
2307 afs_osi_Free(tmpPath, strlen(path) + 1);
2321 * Special case, nextPathP is non-null if pathname ends in slash
2323 if (nextPathP != NULL && vp->v_type != VDIR) {
2325 afs_osi_Free(tmpPath, strlen(path) + 1);
2329 afs_osi_Free(tmpPath, strlen(path) + 1);
2335 * Lookup the target of a symbolic link
2336 * Call VN_HOLD on the output vnode if successful.
2337 * Returns zero on success, error code on failure.
2339 * Note: Caller must hold the AFS global lock.
2342 uafs_LookupLink(struct usr_vnode *vp, struct usr_vnode *parentVp,
2343 struct usr_vnode **vpp)
2348 struct usr_vnode *linkVp;
2350 struct iovec iov[1];
2354 pathP = afs_osi_Alloc(MAX_OSI_PATH + 1);
2355 usr_assert(pathP != NULL);
2358 * set up the uio buffer
2360 iov[0].iov_base = pathP;
2361 iov[0].iov_len = MAX_OSI_PATH + 1;
2362 uio.uio_iov = &iov[0];
2366 uio.uio_fmode = FREAD;
2367 uio.uio_resid = MAX_OSI_PATH + 1;
2370 * Read the link data
2372 code = afs_readlink(vp, &uio, u.u_cred);
2374 afs_osi_Free(pathP, MAX_OSI_PATH + 1);
2377 len = MAX_OSI_PATH + 1 - uio.uio_resid;
2381 * Find the target of the symbolic link
2383 code = uafs_LookupName(pathP, parentVp, &linkVp, 1, 0);
2385 afs_osi_Free(pathP, MAX_OSI_PATH + 1);
2389 afs_osi_Free(pathP, MAX_OSI_PATH + 1);
2395 * Lookup the parent of a file or directory given its path
2396 * Call VN_HOLD on the output vnode if successful.
2397 * Returns zero on success, error code on failure.
2399 * Note: Caller must hold the AFS global lock.
2402 uafs_LookupParent(char *path, struct usr_vnode **vpp)
2407 struct usr_vnode *parentP;
2412 * Absolute path names must start with the AFS mount point.
2415 pathP = uafs_afsPathName(path);
2416 if (pathP == NULL) {
2422 * Find the length of the parent path
2425 while (len > 0 && path[len - 1] == '/') {
2431 while (len > 0 && path[len - 1] != '/') {
2438 pathP = afs_osi_Alloc(len);
2439 usr_assert(pathP != NULL);
2440 memcpy(pathP, path, len - 1);
2441 pathP[len - 1] = '\0';
2444 * look up the parent
2446 code = uafs_LookupName(pathP, afs_CurrentDir, &parentP, 1, 0);
2447 afs_osi_Free(pathP, len);
2451 if (parentP->v_type != VDIR) {
2461 * Return a pointer to the first character in the last component
2465 uafs_LastPath(char *path)
2470 while (len > 0 && path[len - 1] == '/') {
2473 while (len > 0 && path[len - 1] != '/') {
2483 * Set the working directory.
2486 uafs_chdir(char *path)
2490 retval = uafs_chdir_r(path);
2496 uafs_chdir_r(char *path)
2501 code = uafs_LookupName(path, afs_CurrentDir, &dirP, 1, 0);
2506 if (dirP->v_type != VDIR) {
2511 VN_RELE(afs_CurrentDir);
2512 afs_CurrentDir = dirP;
2517 * Create a directory.
2520 uafs_mkdir(char *path, int mode)
2524 retval = uafs_mkdir_r(path, mode);
2530 uafs_mkdir_r(char *path, int mode)
2534 struct vnode *parentP;
2536 struct usr_vattr attrs;
2538 if (uafs_IsRoot(path)) {
2543 * Look up the parent directory.
2545 nameP = uafs_LastPath(path);
2546 if (nameP != NULL) {
2547 code = uafs_LookupParent(path, &parentP);
2553 parentP = afs_CurrentDir;
2559 * Make sure the directory has at least one character
2561 if (*nameP == '\0') {
2568 * Create the directory
2570 usr_vattr_null(&attrs);
2571 attrs.va_type = VREG;
2572 attrs.va_mode = mode;
2573 attrs.va_uid = u.u_cred->cr_uid;
2574 attrs.va_gid = u.u_cred->cr_gid;
2576 code = afs_mkdir(parentP, nameP, &attrs, &dirP, u.u_cred);
2587 * Return 1 if path is the AFS root, otherwise return 0
2590 uafs_IsRoot(char *path)
2592 while (*path == '/' && *(path + 1) == '/') {
2595 if (strncmp(path, afs_mountDir, afs_mountDirLen) != 0) {
2598 path += afs_mountDirLen;
2599 while (*path == '/') {
2602 if (*path != '\0') {
2610 * Note: file name may not end in a slash.
2613 uafs_open(char *path, int flags, int mode)
2617 retval = uafs_open_r(path, flags, mode);
2623 uafs_open_r(char *path, int flags, int mode)
2629 struct usr_vnode *fileP;
2630 struct usr_vnode *dirP;
2631 struct usr_vattr attrs;
2636 if (uafs_IsRoot(path)) {
2637 fileP = afs_RootVnode;
2641 * Look up the parent directory.
2643 nameP = uafs_LastPath(path);
2644 if (nameP != NULL) {
2645 code = uafs_LookupParent(path, &dirP);
2651 dirP = afs_CurrentDir;
2657 * Make sure the filename has at least one character
2659 if (*nameP == '\0') {
2666 * Get the VNODE for this file
2668 if (flags & O_CREAT) {
2669 usr_vattr_null(&attrs);
2670 attrs.va_type = VREG;
2671 attrs.va_mode = mode;
2672 attrs.va_uid = u.u_cred->cr_uid;
2673 attrs.va_gid = u.u_cred->cr_gid;
2674 if (flags & O_TRUNC) {
2680 afs_create(VTOAFS(dirP), nameP, &attrs,
2681 (flags & O_EXCL) ? usr_EXCL : usr_NONEXCL, mode,
2690 code = uafs_LookupName(nameP, dirP, &fileP, 1, 0);
2698 * Check whether we have access to this file
2701 if (flags & (O_RDONLY | O_RDWR)) {
2704 if (flags & (O_WRONLY | O_RDWR)) {
2708 fileMode = VREAD; /* since O_RDONLY is 0 */
2709 code = afs_access(VTOAFS(fileP), fileMode, u.u_cred);
2717 * Get the file attributes, all we need is the size
2719 code = afs_getattr(VTOAFS(fileP), &attrs, u.u_cred);
2729 * Setup the open flags
2732 if (flags & O_TRUNC) {
2733 openFlags |= FTRUNC;
2735 if (flags & O_APPEND) {
2736 openFlags |= FAPPEND;
2738 if (flags & O_SYNC) {
2741 if (flags & O_SYNC) {
2744 if (flags & (O_RDONLY | O_RDWR)) {
2747 if (flags & (O_WRONLY | O_RDWR)) {
2748 openFlags |= FWRITE;
2750 if ((openFlags & (FREAD | FWRITE)) == 0) {
2751 /* O_RDONLY is 0, so ... */
2756 * Truncate if necessary
2758 if ((flags & O_TRUNC) && (attrs.va_size != 0)) {
2759 usr_vattr_null(&attrs);
2761 code = afs_setattr(VTOAFS(fileP), &attrs, u.u_cred);
2773 code = afs_open(&vc, openFlags, u.u_cred);
2781 * Put the vnode pointer into the file table
2783 for (fd = 0; fd < MAX_OSI_FILES; fd++) {
2784 if (afs_FileTable[fd] == NULL) {
2785 afs_FileTable[fd] = fileP;
2786 afs_FileFlags[fd] = openFlags;
2787 if (flags & O_APPEND) {
2788 afs_FileOffsets[fd] = attrs.va_size;
2790 afs_FileOffsets[fd] = 0;
2795 if (fd == MAX_OSI_FILES) {
2808 uafs_creat(char *path, int mode)
2811 rc = uafs_open(path, O_CREAT | O_WRONLY | O_TRUNC, mode);
2816 uafs_creat_r(char *path, int mode)
2819 rc = uafs_open_r(path, O_CREAT | O_WRONLY | O_TRUNC, mode);
2827 uafs_write(int fd, char *buf, int len)
2831 retval = uafs_write_r(fd, buf, len);
2837 uafs_write_r(int fd, char *buf, int len)
2841 struct iovec iov[1];
2842 struct usr_vnode *fileP;
2845 * Make sure this is an open file
2847 fileP = afs_FileTable[fd];
2848 if (fileP == NULL) {
2854 * set up the uio buffer
2856 iov[0].iov_base = buf;
2857 iov[0].iov_len = len;
2858 uio.uio_iov = &iov[0];
2860 uio.uio_offset = afs_FileOffsets[fd];
2862 uio.uio_fmode = FWRITE;
2863 uio.uio_resid = len;
2869 code = afs_write(VTOAFS(fileP), &uio, afs_FileFlags[fd], u.u_cred, 0);
2875 afs_FileOffsets[fd] = uio.uio_offset;
2876 return (len - uio.uio_resid);
2883 uafs_read(int fd, char *buf, int len)
2887 retval = uafs_read_r(fd, buf, len);
2893 uafs_read_r(int fd, char *buf, int len)
2897 struct iovec iov[1];
2898 struct usr_vnode *fileP;
2899 struct usr_buf *bufP;
2902 * Make sure this is an open file
2904 fileP = afs_FileTable[fd];
2905 if (fileP == NULL) {
2911 * set up the uio buffer
2913 iov[0].iov_base = buf;
2914 iov[0].iov_len = len;
2915 uio.uio_iov = &iov[0];
2917 uio.uio_offset = afs_FileOffsets[fd];
2919 uio.uio_fmode = FREAD;
2920 uio.uio_resid = len;
2925 code = afs_read(VTOAFS(fileP), &uio, u.u_cred, 0, &bufP, 0);
2931 afs_FileOffsets[fd] = uio.uio_offset;
2932 return (len - uio.uio_resid);
2936 * Copy the attributes of a file into a stat structure.
2938 * NOTE: Caller must hold the global AFS lock.
2941 uafs_GetAttr(struct usr_vnode *vp, struct stat *stats)
2944 struct usr_vattr attrs;
2949 * Get the attributes
2951 code = afs_getattr(VTOAFS(vp), &attrs, u.u_cred);
2957 * Copy the attributes, zero fields that aren't set
2959 memset((void *)stats, 0, sizeof(struct stat));
2961 stats->st_ino = attrs.va_nodeid;
2962 stats->st_mode = attrs.va_mode;
2963 stats->st_nlink = attrs.va_nlink;
2964 stats->st_uid = attrs.va_uid;
2965 stats->st_gid = attrs.va_gid;
2966 stats->st_rdev = attrs.va_rdev;
2967 stats->st_size = attrs.va_size;
2968 stats->st_atime = attrs.va_atime.tv_sec;
2969 stats->st_mtime = attrs.va_mtime.tv_sec;
2970 stats->st_ctime = attrs.va_ctime.tv_sec;
2971 stats->st_blksize = attrs.va_blocksize;
2972 stats->st_blocks = attrs.va_blocks;
2978 * Get the attributes of a file, do follow links
2981 uafs_stat(char *path, struct stat *buf)
2985 retval = uafs_stat_r(path, buf);
2991 uafs_stat_r(char *path, struct stat *buf)
2996 code = uafs_LookupName(path, afs_CurrentDir, &vp, 1, 0);
3001 code = uafs_GetAttr(vp, buf);
3011 * Get the attributes of a file, don't follow links
3014 uafs_lstat(char *path, struct stat *buf)
3018 retval = uafs_lstat_r(path, buf);
3024 uafs_lstat_r(char *path, struct stat *buf)
3029 code = uafs_LookupName(path, afs_CurrentDir, &vp, 0, 0);
3034 code = uafs_GetAttr(vp, buf);
3044 * Get the attributes of an open file
3047 uafs_fstat(int fd, struct stat *buf)
3051 retval = uafs_fstat_r(fd, buf);
3057 uafs_fstat_r(int fd, struct stat *buf)
3062 vp = afs_FileTable[fd];
3067 code = uafs_GetAttr(vp, buf);
3076 * change the permissions on a file
3079 uafs_chmod(char *path, int mode)
3083 retval = uafs_chmod_r(path, mode);
3089 uafs_chmod_r(char *path, int mode)
3093 struct usr_vattr attrs;
3095 code = uafs_LookupName(path, afs_CurrentDir, &vp, 1, 0);
3100 usr_vattr_null(&attrs);
3101 attrs.va_mode = mode;
3102 code = afs_setattr(VTOAFS(vp), &attrs, u.u_cred);
3112 * change the permissions on an open file
3115 uafs_fchmod(int fd, int mode)
3119 retval = uafs_fchmod_r(fd, mode);
3125 uafs_fchmod_r(int fd, int mode)
3129 struct usr_vattr attrs;
3131 vp = afs_FileTable[fd];
3136 usr_vattr_null(&attrs);
3137 attrs.va_mode = mode;
3138 code = afs_setattr(VTOAFS(vp), &attrs, u.u_cred);
3150 uafs_truncate(char *path, int length)
3154 retval = uafs_truncate_r(path, length);
3160 uafs_truncate_r(char *path, int length)
3164 struct usr_vattr attrs;
3166 code = uafs_LookupName(path, afs_CurrentDir, &vp, 1, 0);
3171 usr_vattr_null(&attrs);
3172 attrs.va_size = length;
3173 code = afs_setattr(VTOAFS(vp), &attrs, u.u_cred);
3183 * truncate an open file
3186 uafs_ftruncate(int fd, int length)
3190 retval = uafs_ftruncate_r(fd, length);
3196 uafs_ftruncate_r(int fd, int length)
3200 struct usr_vattr attrs;
3202 vp = afs_FileTable[fd];
3207 usr_vattr_null(&attrs);
3208 attrs.va_size = length;
3209 code = afs_setattr(VTOAFS(vp), &attrs, u.u_cred);
3218 * set the read/write file pointer of an open file
3221 uafs_lseek(int fd, int offset, int whence)
3225 retval = uafs_lseek_r(fd, offset, whence);
3231 uafs_lseek_r(int fd, int offset, int whence)
3235 struct usr_vattr attrs;
3236 struct usr_vnode *vp;
3238 vp = afs_FileTable[fd];
3245 newpos = afs_FileOffsets[fd] + offset;
3251 code = afs_getattr(VTOAFS(vp), &attrs, u.u_cred);
3256 newpos = attrs.va_size + offset;
3266 afs_FileOffsets[fd] = newpos;
3278 retval = uafs_fsync_r(fd);
3284 uafs_fsync_r(int fd)
3287 struct usr_vnode *fileP;
3290 fileP = afs_FileTable[fd];
3291 if (fileP == NULL) {
3296 code = afs_fsync(fileP, u.u_cred);
3313 retval = uafs_close_r(fd);
3319 uafs_close_r(int fd)
3322 struct usr_vnode *fileP;
3324 fileP = afs_FileTable[fd];
3325 if (fileP == NULL) {
3329 afs_FileTable[fd] = NULL;
3331 code = afs_close(fileP, afs_FileFlags[fd], u.u_cred);
3342 * Create a hard link from the source to the target
3343 * Note: file names may not end in a slash.
3346 uafs_link(char *existing, char *new)
3350 retval = uafs_link_r(existing, new);
3356 uafs_link_r(char *existing, char *new)
3359 struct usr_vnode *existP;
3360 struct usr_vnode *dirP;
3363 if (uafs_IsRoot(new)) {
3368 * Look up the existing node.
3370 code = uafs_LookupName(existing, afs_CurrentDir, &existP, 1, 0);
3377 * Look up the parent directory.
3379 nameP = uafs_LastPath(new);
3380 if (nameP != NULL) {
3381 code = uafs_LookupParent(new, &dirP);
3388 dirP = afs_CurrentDir;
3394 * Make sure the filename has at least one character
3396 if (*nameP == '\0') {
3406 code = afs_link(existP, dirP, nameP, u.u_cred);
3417 * Create a symbolic link from the source to the target
3418 * Note: file names may not end in a slash.
3421 uafs_symlink(char *target, char *source)
3425 retval = uafs_symlink_r(target, source);
3431 uafs_symlink_r(char *target, char *source)
3434 struct usr_vnode *dirP;
3435 struct usr_vattr attrs;
3438 if (uafs_IsRoot(source)) {
3443 * Look up the parent directory.
3445 nameP = uafs_LastPath(source);
3446 if (nameP != NULL) {
3447 code = uafs_LookupParent(source, &dirP);
3453 dirP = afs_CurrentDir;
3459 * Make sure the filename has at least one character
3461 if (*nameP == '\0') {
3470 usr_vattr_null(&attrs);
3471 attrs.va_type = VLNK;
3472 attrs.va_mode = 0777;
3473 attrs.va_uid = u.u_cred->cr_uid;
3474 attrs.va_gid = u.u_cred->cr_gid;
3475 code = afs_symlink(dirP, nameP, &attrs, target, u.u_cred);
3485 * Read a symbolic link into the buffer
3488 uafs_readlink(char *path, char *buf, int len)
3492 retval = uafs_readlink_r(path, buf, len);
3498 uafs_readlink_r(char *path, char *buf, int len)
3501 struct usr_vnode *vp;
3503 struct iovec iov[1];
3505 code = uafs_LookupName(path, afs_CurrentDir, &vp, 0, 0);
3511 if (vp->v_type != VLNK) {
3518 * set up the uio buffer
3520 iov[0].iov_base = buf;
3521 iov[0].iov_len = len;
3522 uio.uio_iov = &iov[0];
3526 uio.uio_fmode = FREAD;
3527 uio.uio_resid = len;
3532 code = afs_readlink(vp, &uio, u.u_cred);
3540 * return the number of bytes read
3542 return (len - uio.uio_resid);
3546 * Remove a file (or directory)
3547 * Note: file name may not end in a slash.
3550 uafs_unlink(char *path)
3554 retval = uafs_unlink_r(path);
3560 uafs_unlink_r(char *path)
3564 struct usr_vnode *fileP;
3565 struct usr_vnode *dirP;
3568 if (uafs_IsRoot(path)) {
3573 * Look up the parent directory.
3575 nameP = uafs_LastPath(path);
3576 if (nameP != NULL) {
3577 code = uafs_LookupParent(path, &dirP);
3583 dirP = afs_CurrentDir;
3589 * Make sure the filename has at least one character
3591 if (*nameP == '\0') {
3600 code = afs_remove(dirP, nameP, u.u_cred);
3611 * Rename a file (or directory)
3614 uafs_rename(char *old, char *new)
3618 retval = uafs_rename_r(old, new);
3624 uafs_rename_r(char *old, char *new)
3629 struct usr_vnode *odirP;
3630 struct usr_vnode *ndirP;
3632 if (uafs_IsRoot(new)) {
3637 * Look up the parent directories.
3639 onameP = uafs_LastPath(old);
3640 if (onameP != NULL) {
3641 code = uafs_LookupParent(old, &odirP);
3647 odirP = afs_CurrentDir;
3651 nnameP = uafs_LastPath(new);
3652 if (nnameP != NULL) {
3653 code = uafs_LookupParent(new, &ndirP);
3659 ndirP = afs_CurrentDir;
3665 * Make sure the filename has at least one character
3667 if (*onameP == '\0' || *nnameP == '\0') {
3677 code = afs_rename(odirP, onameP, ndirP, nnameP, u.u_cred);
3689 * Remove a or directory
3690 * Note: file name may not end in a slash.
3693 uafs_rmdir(char *path)
3697 retval = uafs_rmdir_r(path);
3703 uafs_rmdir_r(char *path)
3707 struct usr_vnode *fileP;
3708 struct usr_vnode *dirP;
3711 if (uafs_IsRoot(path)) {
3716 * Look up the parent directory.
3718 nameP = uafs_LastPath(path);
3719 if (nameP != NULL) {
3720 code = uafs_LookupParent(path, &dirP);
3726 dirP = afs_CurrentDir;
3732 * Make sure the directory name has at least one character
3734 if (*nameP == '\0') {
3741 * Remove the directory
3743 code = afs_rmdir(dirP, nameP, u.u_cred);
3754 * Flush a file from the AFS cache
3757 uafs_FlushFile(char *path)
3760 struct afs_ioctl iob;
3768 call_syscall(AFSCALL_PIOCTL, (long)path, _VICEIOCTL(6), (long)&iob, 0,
3779 uafs_FlushFile_r(char *path)
3783 retval = uafs_FlushFile(path);
3792 uafs_opendir(char *path)
3796 retval = uafs_opendir_r(path);
3802 uafs_opendir_r(char *path)
3805 struct usr_vnode *fileP;
3809 * Open the directory for reading
3811 fd = uafs_open_r(path, O_RDONLY, 0);
3816 fileP = afs_FileTable[fd];
3817 if (fileP == NULL) {
3821 if (fileP->v_type != VDIR) {
3828 * Set up the directory structures
3831 (usr_DIR *) afs_osi_Alloc(sizeof(usr_DIR) + USR_DIRSIZE +
3832 sizeof(struct usr_dirent));
3833 usr_assert(dirp != NULL);
3834 dirp->dd_buf = (char *)(dirp + 1);
3844 * Read directory entries into a file system independent format.
3845 * This routine was developed to support AFS cache consistency testing.
3846 * You should use uafs_readdir instead.
3849 uafs_getdents(int fd, struct min_direct *buf, int len)
3853 retval = uafs_getdents_r(fd, buf, len);
3859 uafs_getdents_r(int fd, struct min_direct *buf, int len)
3863 struct usr_vnode *vp;
3864 struct iovec iov[1];
3867 * Make sure this is an open file
3869 vp = afs_FileTable[fd];
3877 * set up the uio buffer
3879 iov[0].iov_base = (char *)buf;
3880 iov[0].iov_len = len;
3881 uio.uio_iov = &iov[0];
3883 uio.uio_offset = afs_FileOffsets[fd];
3885 uio.uio_fmode = FREAD;
3886 uio.uio_resid = len;
3889 * read the next chunk from the directory
3891 code = afs_readdir(vp, &uio, u.u_cred);
3897 afs_FileOffsets[fd] = uio.uio_offset;
3898 return (len - uio.uio_resid);
3902 * read from a directory (names only)
3905 uafs_readdir(usr_DIR * dirp)
3907 struct usr_dirent *retval;
3909 retval = uafs_readdir_r(dirp);
3915 uafs_readdir_r(usr_DIR * dirp)
3921 struct usr_vnode *vp;
3922 struct iovec iov[1];
3923 struct usr_dirent *direntP;
3924 struct min_direct *directP;
3927 * Make sure this is an open file
3929 vp = afs_FileTable[dirp->dd_fd];
3936 * If there are no entries in the stream buffer
3937 * then read another chunk
3939 directP = (struct min_direct *)(dirp->dd_buf + dirp->dd_loc);
3940 if (dirp->dd_size == 0 || directP->d_fileno == 0) {
3942 * set up the uio buffer
3944 iov[0].iov_base = dirp->dd_buf;
3945 iov[0].iov_len = USR_DIRSIZE;
3946 uio.uio_iov = &iov[0];
3948 uio.uio_offset = afs_FileOffsets[dirp->dd_fd];
3950 uio.uio_fmode = FREAD;
3951 uio.uio_resid = USR_DIRSIZE;
3954 * read the next chunk from the directory
3956 code = afs_readdir(vp, &uio, u.u_cred);
3961 afs_FileOffsets[dirp->dd_fd] = uio.uio_offset;
3963 dirp->dd_size = USR_DIRSIZE - iov[0].iov_len;
3965 directP = (struct min_direct *)(dirp->dd_buf + dirp->dd_loc);
3969 * Check for end of file
3971 if (dirp->dd_size == 0 || directP->d_fileno == 0) {
3975 len = ((sizeof(struct min_direct) + directP->d_namlen + 4) & (~3));
3976 usr_assert(len <= dirp->dd_size);
3979 * Copy the next entry into the usr_dirent structure and advance
3981 direntP = (struct usr_dirent *)(dirp->dd_buf + USR_DIRSIZE);
3982 direntP->d_ino = directP->d_fileno;
3983 direntP->d_off = direntP->d_reclen;
3985 sizeof(struct usr_dirent) - MAXNAMLEN + directP->d_namlen + 1;
3986 memcpy(&direntP->d_name[0], (void *)(directP + 1), directP->d_namlen);
3987 direntP->d_name[directP->d_namlen] = '\0';
3988 dirp->dd_loc += len;
3989 dirp->dd_size -= len;
3998 uafs_closedir(usr_DIR * dirp)
4002 retval = uafs_closedir_r(dirp);
4008 uafs_closedir_r(usr_DIR * dirp)
4014 afs_osi_Free((char *)dirp,
4015 sizeof(usr_DIR) + USR_DIRSIZE + sizeof(struct usr_dirent));
4016 rc = uafs_close_r(fd);
4021 * Do AFS authentication
4024 uafs_klog(char *user, char *cell, char *passwd, char **reason)
4027 afs_int32 password_expires = -1;
4029 usr_mutex_lock(&osi_authenticate_lock);
4031 ka_UserAuthenticateGeneral(KA_USERAUTH_VERSION +
4032 KA_USERAUTH_DOSETPAG2, user, NULL, cell,
4033 passwd, 0, &password_expires, 0, reason);
4034 usr_mutex_unlock(&osi_authenticate_lock);
4039 uafs_klog_r(char *user, char *cell, char *passwd, char **reason)
4043 retval = uafs_klog(user, cell, passwd, reason);
4049 * Destroy AFS credentials from the kernel cache
4056 usr_mutex_lock(&osi_authenticate_lock);
4057 code = ktc_ForgetAllTokens();
4058 usr_mutex_unlock(&osi_authenticate_lock);
4067 retval = uafs_unlog();
4073 * Strip the AFS mount point from a pathname string. Return
4074 * NULL if the path is a relative pathname or if the path
4075 * doesn't start with the AFS mount point string.
4078 uafs_afsPathName(char *path)
4087 for (i = 1, p = path + 1; *p != '\0'; p++) {
4088 /* Ignore duplicate slashes */
4089 if (*p == '/' && lastchar == '/')
4091 /* Is this a subdirectory of the AFS mount point? */
4092 if (afs_mountDir[i] == '\0' && *p == '/') {
4093 /* strip leading slashes */
4094 while (*(++p) == '/');
4097 /* Reject paths that are not within AFS */
4098 if (*p != afs_mountDir[i])
4103 /* Is this the AFS mount point? */
4104 if (afs_mountDir[i] == '\0') {
4105 usr_assert(*p == '\0');
4111 #ifdef AFS_WEB_ENHANCEMENTS
4114 * klog but don't allocate a new pag
4117 uafs_klog_nopag(char *user, char *cell, char *passwd, char **reason)
4120 afs_int32 password_expires = -1;
4122 usr_mutex_lock(&osi_authenticate_lock);
4123 code = ka_UserAuthenticateGeneral(KA_USERAUTH_VERSION
4124 /*+KA_USERAUTH_DOSETPAG2 */ , user,
4125 NULL, cell, passwd, 0,
4126 &password_expires, 0, reason);
4127 usr_mutex_unlock(&osi_authenticate_lock);
4132 * uafs_getcellstatus
4133 * get the cell status
4136 uafs_getcellstatus(char *cell, afs_int32 * status)
4139 struct afs_ioctl iob;
4142 iob.in_size = strlen(cell) + 1;
4146 rc = call_syscall(AFSCALL_PIOCTL, /*path */ 0, _VICEIOCTL(35),
4154 *status = (afs_int32) iob.out;
4160 * Get quota of volume associated with path
4163 uafs_getvolquota(char *path, afs_int32 * BlocksInUse, afs_int32 * MaxQuota)
4166 struct afs_ioctl iob;
4167 VolumeStatus *status;
4173 iob.out_size = 1024;
4175 rc = call_syscall(AFSCALL_PIOCTL, (long)path, _VICEIOCTL(4), (long)&iob,
4183 status = (VolumeStatus *) buf;
4184 *BlocksInUse = status->BlocksInUse;
4185 *MaxQuota = status->MaxQuota;
4191 * Set quota of volume associated with path
4194 uafs_setvolquota(char *path, afs_int32 MaxQuota)
4197 struct afs_ioctl iob;
4198 VolumeStatus *status;
4206 memset(buf, 0, sizeof(VolumeStatus));
4207 status = (VolumeStatus *) buf;
4208 status->MaxQuota = MaxQuota;
4209 status->MinQuota = -1;
4211 rc = call_syscall(AFSCALL_PIOCTL, (long)path, _VICEIOCTL(5), (long)&iob,
4223 * uafs_statmountpoint
4224 * Determine whether a dir. is a mount point or not
4225 * return 1 if mount point, 0 if not
4228 uafs_statmountpoint(char *path)
4235 retval = uafs_statmountpoint_r(path);
4241 uafs_statmountpoint_r(char *path)
4246 struct vrequest treq;
4249 code = uafs_LookupName(path, afs_CurrentDir, &vp, 0, 1);
4264 * Get a list of rights for the current user on path.
4267 uafs_getRights(char *path)
4274 code = uafs_LookupName(path, afs_CurrentDir, &vp, 1, 0);
4282 PRSFS_READ | PRSFS_WRITE | PRSFS_INSERT | PRSFS_LOOKUP | PRSFS_DELETE
4283 | PRSFS_LOCK | PRSFS_ADMINISTER;
4285 afs_rights = afs_getRights(vp, afs_rights, u.u_cred);
4290 #endif /* AFS_WEB_ENHANCEMENTS */
4292 #endif /* UKERNEL */