/* I/O operations for the Unix open by name (namei) interface. */
+#include <afsconfig.h>
#include <afs/param.h>
+
+RCSID
+ ("$Header$");
+
#ifdef AFS_NAMEI_ENV
#include <stdio.h>
#include <stdlib.h>
+#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/file.h>
#include <sys/param.h>
#include <lock.h>
+#if defined(AFS_SUN5_ENV) || defined(AFS_HPUX_ENV)
+#include <unistd.h>
+#endif
#include <afs/afsutil.h>
#include <lwp.h>
#include "nfs.h"
#include "viceinode.h"
#include "voldefs.h"
#include "partition.h"
+#include "fssync.h"
+#include <afs/errors.h>
+
+/*@+fcnmacros +macrofcndecl@*/
+#ifdef O_LARGEFILE
+#ifdef S_SPLINT_S
+extern off64_t afs_lseek(int FD, off64_t O, int F);
+#endif /*S_SPLINT_S */
+#define afs_lseek(FD, O, F) lseek64(FD, (off64_t)(O), F)
+#define afs_stat stat64
+#define afs_fstat fstat64
+#define afs_open open64
+#define afs_fopen fopen64
+#else /* !O_LARGEFILE */
+#ifdef S_SPLINT_S
+extern off_t afs_lseek(int FD, off_t O, int F);
+#endif /*S_SPLINT_S */
+#define afs_lseek(FD, O, F) lseek(FD, (off_t)(O), F)
+#define afs_stat stat
+#define afs_fstat fstat
+#define afs_open open
+#define afs_fopen fopen
+#endif /* !O_LARGEFILE */
+/*@=fcnmacros =macrofcndecl@*/
+
+/*@printflike@*/ extern void Log(const char *format, ...);
+
+#ifndef LOCK_SH
+#define LOCK_SH 1 /* shared lock */
+#define LOCK_EX 2 /* exclusive lock */
+#define LOCK_NB 4 /* don't block when locking */
+#define LOCK_UN 8 /* unlock */
+#endif
+
+#ifndef HAVE_FLOCK
+#include <fcntl.h>
+
+/*
+ * This function emulates a subset of flock()
+ */
+int
+emul_flock(int fd, int cmd)
+{ struct flock f;
+
+ memset(&f, 0, sizeof (f));
+
+ if (cmd & LOCK_UN)
+ f.l_type = F_UNLCK;
+ if (cmd & LOCK_SH)
+ f.l_type = F_RDLCK;
+ if (cmd & LOCK_EX)
+ f.l_type = F_WRLCK;
+
+ return fcntl(fd, (cmd & LOCK_NB) ? F_SETLK : F_SETLKW, &f);
+}
+
+#define flock(f,c) emul_flock(f,c)
+#endif
extern char *volutil_PartitionName_r(int volid, char *buf, int buflen);
+int Testing=0;
-int namei_iread(IHandle_t *h, int offset, char *buf, int size)
+
+afs_sfsize_t
+namei_iread(IHandle_t * h, afs_foff_t offset, char *buf, afs_fsize_t size)
{
- int nBytes;
+ afs_sfsize_t nBytes;
FdHandle_t *fdP;
fdP = IH_OPEN(h);
if (fdP == NULL)
return -1;
- if (FDH_SEEK(fdP, offset, SEEK_SET)<0) {
+ if (FDH_SEEK(fdP, offset, SEEK_SET) < 0) {
FDH_REALLYCLOSE(fdP);
return -1;
}
return nBytes;
}
-int namei_iwrite(IHandle_t *h, int offset, char *buf, int size)
+afs_sfsize_t
+namei_iwrite(IHandle_t * h, afs_foff_t offset, char *buf, afs_fsize_t size)
{
- int nBytes;
+ afs_sfsize_t nBytes;
FdHandle_t *fdP;
fdP = IH_OPEN(h);
if (fdP == NULL)
return -1;
- if (FDH_SEEK(fdP, offset, SEEK_SET)<0) {
+ if (FDH_SEEK(fdP, offset, SEEK_SET) < 0) {
FDH_REALLYCLOSE(fdP);
return -1;
}
#define NAMEI_SPECDIR "special"
#define NAMEI_SPECDIRLEN (sizeof(NAMEI_SPECDIR)-1)
-#define NAMEI_MAXVOLS 5 /* Maximum supported number of volumes per volume
- * group, not counting temporary (move) volumes.
- * This is the number of separate files, all having
- * the same vnode number, which can occur in a volume
- * group at once.
- */
+#define NAMEI_MAXVOLS 5 /* Maximum supported number of volumes per volume
+ * group, not counting temporary (move) volumes.
+ * This is the number of separate files, all having
+ * the same vnode number, which can occur in a volume
+ * group at once.
+ */
+
-
typedef struct {
int ogm_owner;
int ogm_group;
int ogm_mode;
} namei_ogm_t;
-int namei_SetLinkCount(FdHandle_t *h, Inode ino, int count, int locked);
-static int GetFreeTag(IHandle_t *ih, int vno);
+static int namei_GetLinkCount2(FdHandle_t * h, Inode ino, int lockit, int fixup, int nowrite);
+
+static int GetFreeTag(IHandle_t * ih, int vno);
/* namei_HandleToInodeDir
*
*
*/
#define PNAME_BLEN 64
-static void namei_HandleToInodeDir(namei_t *name, IHandle_t *ih)
+static void
+namei_HandleToInodeDir(namei_t * name, IHandle_t * ih)
{
char *tmp = name->n_base;
memset(name, '\0', sizeof(*name));
- (void) volutil_PartitionName_r(ih->ih_dev, tmp, NAMEI_LCOMP_LEN);
+ (void)volutil_PartitionName_r(ih->ih_dev, tmp, NAMEI_LCOMP_LEN);
tmp += VICE_PREFIX_SIZE;
tmp += ih->ih_dev > 25 ? 2 : 1;
- *tmp = '/'; tmp ++;
- (void) strcpy(tmp, INODEDIR);
- (void) strcpy(name->n_path, name->n_base);
+ *tmp = '/';
+ tmp++;
+ (void)strcpy(tmp, INODEDIR);
+ (void)strcpy(name->n_path, name->n_base);
}
#define addtoname(N, C) \
} while(0)
-static void namei_HandleToVolDir(namei_t *name, IHandle_t *ih)
+static void
+namei_HandleToVolDir(namei_t * name, IHandle_t * ih)
{
lb64_string_t tmp;
namei_HandleToInodeDir(name, ih);
- (void) int32_to_flipbase64(tmp, (int64_t)(ih->ih_vid & 0xff));
- (void) strcpy(name->n_voldir1, tmp);
+ (void)int32_to_flipbase64(tmp, (int64_t) (ih->ih_vid & 0xff));
+ (void)strcpy(name->n_voldir1, tmp);
addtoname(name, name->n_voldir1);
- (void) int32_to_flipbase64(tmp, (int64_t)ih->ih_vid);
- (void) strcpy(name->n_voldir2, tmp);
+ (void)int32_to_flipbase64(tmp, (int64_t) ih->ih_vid);
+ (void)strcpy(name->n_voldir2, tmp);
addtoname(name, name->n_voldir2);
}
* Constructs a file name for the fully qualified handle.
* Note that special files end up in /vicepX/InodeDir/Vxx/V*.data/special
*/
-void namei_HandleToName(namei_t *name, IHandle_t *ih)
+void
+namei_HandleToName(namei_t * name, IHandle_t * ih)
{
lb64_string_t str;
int vno = (int)(ih->ih_ino & NAMEI_VNODEMASK);
- int tmp;
-
+
namei_HandleToVolDir(name, ih);
if (vno == NAMEI_VNODESPECIAL) {
- (void) strcpy(name->n_dir1, NAMEI_SPECDIR);
+ (void)strcpy(name->n_dir1, NAMEI_SPECDIR);
addtoname(name, name->n_dir1);
name->n_dir2[0] = '\0';
- }
- else {
- (void) int32_to_flipbase64(str, VNO_DIR1(vno));
- (void) strcpy(name->n_dir1, str);
+ } else {
+ (void)int32_to_flipbase64(str, VNO_DIR1(vno));
+ (void)strcpy(name->n_dir1, str);
addtoname(name, name->n_dir1);
- (void) int32_to_flipbase64(str, VNO_DIR2(vno));
- (void) strcpy(name->n_dir2, str);
+ (void)int32_to_flipbase64(str, VNO_DIR2(vno));
+ (void)strcpy(name->n_dir2, str);
addtoname(name, name->n_dir2);
}
- (void) int64_to_flipbase64(str, (int64_t)ih->ih_ino);
- (void) strcpy(name->n_inode, str);
+ (void)int64_to_flipbase64(str, (int64_t) ih->ih_ino);
+ (void)strcpy(name->n_inode, str);
addtoname(name, name->n_inode);
}
* name space.
*/
#define VICE_README "These files and directories are a part of the AFS \
-namespace. Modifying them\nin any way will result in loss of AFS data.\n"
-int namei_ViceREADME(char *partition)
+namespace. Modifying them\nin any way will result in loss of AFS data,\n\
+ownership and permissions included.\n"
+int
+namei_ViceREADME(char *partition)
{
- char filename[32];
- int fd;
-
- sprintf(filename, "%s/%s/README", partition, INODEDIR);
- fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0444);
- if (fd >= 0) {
- write(fd, VICE_README, strlen(VICE_README));
- close(fd);
- }
- return(errno);
+ char filename[32];
+ int fd;
+
+ /* Create the inode directory if we're starting for the first time */
+ (void)afs_snprintf(filename, sizeof filename, "%s/%s", partition,
+ INODEDIR);
+ mkdir(filename, 0700);
+
+ (void)afs_snprintf(filename, sizeof filename, "%s/%s/README", partition,
+ INODEDIR);
+ fd = afs_open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0444);
+ if (fd >= 0) {
+ (void)write(fd, VICE_README, strlen(VICE_README));
+ close(fd);
+ }
+ return (errno);
}
else { \
*created = 1; \
} \
-} while (0)
+} while (0)
#define create_nextdir(A) \
do { \
* If creating the file failed because of ENOENT or ENOTDIR, try
* creating all the directories first.
*/
-static int namei_CreateDataDirectories(namei_t *name, int *created)
+static int
+namei_CreateDataDirectories(namei_t * name, int *created)
{
char tmp[256];
- char *s;
- int i;
*created = 0;
- (void) strcpy(tmp, name->n_base);
+ (void)strcpy(tmp, name->n_base);
create_dir();
create_nextdir(name->n_voldir1);
create_nextdir(name->n_dir2);
}
return 0;
-}
+}
/* delTree(): Deletes an entire tree of directories (no files)
* Input:
static int
delTree(char *root, char *tree, int *errp)
{
- char *cp;
- DIR *ds;
- struct dirent *dirp;
- struct stat st;
- int er;
-
- if (*tree) {
- /* delete the children first */
- cp = strchr(tree, '/');
- if (cp) {
- delTree(root, cp+1, errp);
- *cp = '\0';
- }
- else
- cp = tree + strlen(tree); /* move cp to the end of string tree */
-
- /* now delete all entries in this dir */
- if ( (ds = opendir(root)) != (DIR *)NULL) {
- errno = 0;
- while (dirp = readdir(ds)) {
- /* ignore . and .. */
- if (!strcmp(dirp->d_name, ".") || !strcmp(dirp->d_name, ".."))
- continue;
- /* since root is big enough, we reuse the space to
- * concatenate the dirname to the current tree
- */
- strcat(root, "/");
- strcat(root, dirp->d_name);
- if ( stat(root, &st) == 0 && S_ISDIR(st.st_mode)) {
- /* delete this subtree */
- delTree(root, cp+1, errp);
+ char *cp;
+ DIR *ds;
+ struct dirent *dirp;
+ struct afs_stat st;
+
+ if (*tree) {
+ /* delete the children first */
+ cp = strchr(tree, '/');
+ if (cp) {
+ delTree(root, cp + 1, errp);
+ *cp = '\0';
} else
- *errp = *errp ? *errp : errno;
-
- /* recover path to our cur tree by truncating it to
- * its original len
- */
- *cp = 0;
- }
- if (!errno)
- closedir(ds);
- }
-
- /* finally axe the current dir */
- if (rmdir(root))
- *errp = *errp ? *errp : errno;
+ cp = tree + strlen(tree); /* move cp to the end of string tree */
+
+ /* now delete all entries in this dir */
+ if ((ds = opendir(root)) != (DIR *) NULL) {
+ errno = 0;
+ while ((dirp = readdir(ds))) {
+ /* ignore . and .. */
+ if (!strcmp(dirp->d_name, ".") || !strcmp(dirp->d_name, ".."))
+ continue;
+ /* since root is big enough, we reuse the space to
+ * concatenate the dirname to the current tree
+ */
+ strcat(root, "/");
+ strcat(root, dirp->d_name);
+ if (afs_stat(root, &st) == 0 && S_ISDIR(st.st_mode)) {
+ /* delete this subtree */
+ delTree(root, cp + 1, errp);
+ } else
+ *errp = *errp ? *errp : errno;
+
+ /* recover path to our cur tree by truncating it to
+ * its original len
+ */
+ *cp = 0;
+ }
+ /* if (!errno) -- closedir not implicit if we got an error */
+ closedir(ds);
+ }
+
+ /* finally axe the current dir */
+ if (rmdir(root))
+ *errp = *errp ? *errp : errno;
-#ifndef AFS_PTHREAD_ENV /* let rx get some work done */
- IOMGR_Poll();
+#ifndef AFS_PTHREAD_ENV /* let rx get some work done */
+ IOMGR_Poll();
#endif /* !AFS_PTHREAD_ENV */
- } /* if valid tree */
-
- /* if we encountered errors during cleanup, we return a -1 */
- if (*errp)
- return -1;
+ }
+
+ /* if valid tree */
+ /* if we encountered errors during cleanup, we return a -1 */
+ if (*errp)
+ return -1;
+
+ return 0;
- return 0;
-
}
/* namei_RemoveDataDirectories
* and only do rmdir's.
*/
-static int namei_RemoveDataDirectories(namei_t *name)
+static int
+namei_RemoveDataDirectories(namei_t * name)
{
- char pbuf[MAXPATHLEN], *path = pbuf;
- int prefixlen = strlen(name->n_base), err = 0;
-
- strcpy(path, name->n_path);
+ char pbuf[MAXPATHLEN], *path = pbuf;
+ int prefixlen = strlen(name->n_base), err = 0;
- /* move past the prefix */
- path = path+prefixlen+1; /* skip over the trailing / */
+ strcpy(path, name->n_path);
- /* now delete all dirs upto path */
- return delTree(pbuf, path, &err);
-
-}
+ /* move past the prefix */
+ path = path + prefixlen + 1; /* skip over the trailing / */
+
+ /* now delete all dirs upto path */
+ return delTree(pbuf, path, &err);
+
+}
/* Create the file in the name space.
*
* details of the inode numbers. This only allows for 7 volume special
* types, but if we get that far, this could should be dead by then.
*/
-Inode namei_MakeSpecIno(int volid, int type)
+Inode
+namei_MakeSpecIno(int volid, int type)
{
Inode ino;
ino = NAMEI_INODESPECIAL;
type &= NAMEI_TAGMASK;
- ino |= ((Inode)type) << NAMEI_TAGSHIFT;
- ino |= ((Inode)volid) << NAMEI_UNIQSHIFT;
+ ino |= ((Inode) type) << NAMEI_TAGSHIFT;
+ ino |= ((Inode) volid) << NAMEI_UNIQSHIFT;
return ino;
}
* group - next 15 bits of parm.
* mode - 2 bits of parm, then lowest = 3 bits of tag.
*/
-static int SetOGM(int fd, int parm, int tag)
+static int
+SetOGM(int fd, int parm, int tag)
{
int owner, group, mode;
owner = parm & 0x7fff;
group = (parm >> 15) & 0x7fff;
- if (fchown(fd, owner, group)<0)
+ if (fchown(fd, owner, group) < 0)
return -1;
mode = (parm >> 27) & 0x18;
mode |= tag & 0x7;
- if (fchmod(fd, mode)<0)
+ if (fchmod(fd, mode) < 0)
return -1;
return 0;
}
/* GetOGM - get parm and tag from owner, group and mode bits. */
-static void GetOGMFromStat(struct stat *status, int *parm, int *tag)
+static void
+GetOGMFromStat(struct afs_stat *status, int *parm, int *tag)
{
- int tmp;
-
*parm = status->st_uid | (status->st_gid << 15);
*parm |= (status->st_mode & 0x18) << 27;
*tag = status->st_mode & 0x7;
}
-static int GetOGM(int fd, int *parm, int *tag)
+static int
+GetOGM(int fd, int *parm, int *tag)
{
- struct stat status;
- if (fstat(fd, &status)<0)
+ struct afs_stat status;
+ if (afs_fstat(fd, &status) < 0)
return -1;
GetOGMFromStat(&status, parm, tag);
return 0;
}
-int big_vno = 0; /* Just in case we ever do 64 bit vnodes. */
+int big_vno = 0; /* Just in case we ever do 64 bit vnodes. */
/* Derive the name and create it O_EXCL. If that fails we have an error.
* Get the tag from a free column in the link table.
*/
-Inode namei_icreate(IHandle_t *lh, char *part, int p1, int p2, int p3, int p4)
+Inode
+namei_icreate(IHandle_t * lh, char *part, int p1, int p2, int p3, int p4)
{
namei_t name;
- namei_ogm_t ogm;
- b32_string_t str1;
- char *p;
- int i;
int fd = -1;
int code = 0;
int created_dir = 0;
IHandle_t tmp;
FdHandle_t *fdP;
FdHandle_t tfd;
- int save_errno;
int tag;
int ogm_parm;
-
- memset((void*)&tmp, 0, sizeof(IHandle_t));
+
+ memset((void *)&tmp, 0, sizeof(IHandle_t));
tmp.ih_dev = volutil_GetPartitionID(part);
return -1;
}
- if (p2 == -1 ) {
+ if (p2 == -1) {
/* Parameters for special file:
* p1 - volume id - goes into owner/group/mode
* p2 - vnode == -1
ogm_parm = p1;
tag = p3;
- tmp.ih_vid = p4; /* Use parent volume id, where this file will be.*/
+ tmp.ih_vid = p4; /* Use parent volume id, where this file will be. */
tmp.ih_ino = namei_MakeSpecIno(p1, p3);
- }
- else {
- int vno = p2 & NAMEI_VNODEMASK;
+ } else {
+ int vno = p2 & NAMEI_VNODEMASK;
/* Parameters for regular file:
* p1 - volume id
* p2 - vnode
*/
if (vno != p2) {
- big_vno ++;
+ big_vno++;
errno = EINVAL;
return -1;
}
/* name is <uniq(p3)><tag><vno(p2)> */
tmp.ih_vid = p1;
- tmp.ih_ino = (Inode)p2;
- tmp.ih_ino |= ((Inode)tag)<<NAMEI_TAGSHIFT;
- tmp.ih_ino |= ((Inode)p3)<<NAMEI_UNIQSHIFT;
+ tmp.ih_ino = (Inode) p2;
+ tmp.ih_ino |= ((Inode) tag) << NAMEI_TAGSHIFT;
+ tmp.ih_ino |= ((Inode) p3) << NAMEI_UNIQSHIFT;
ogm_parm = p4;
}
namei_HandleToName(&name, &tmp);
- fd = open(name.n_path, O_CREAT|O_EXCL|O_TRUNC|O_RDWR, 0);
+ fd = afs_open(name.n_path, O_CREAT | O_EXCL | O_TRUNC | O_RDWR, 0);
if (fd < 0) {
if (errno == ENOTDIR || errno == ENOENT) {
- if (namei_CreateDataDirectories(&name, &created_dir)<0)
+ if (namei_CreateDataDirectories(&name, &created_dir) < 0)
goto bad;
- fd = open(name.n_path, O_CREAT|O_EXCL|O_TRUNC|O_RDWR, 0);
+ fd = afs_open(name.n_path, O_CREAT | O_EXCL | O_TRUNC | O_RDWR,
+ 0);
if (fd < 0)
goto bad;
- }
- else {
+ } else {
goto bad;
}
}
- if (SetOGM(fd, ogm_parm, tag)<0) {
+ if (SetOGM(fd, ogm_parm, tag) < 0) {
close(fd);
fd = -1;
goto bad;
if (p2 == -1 && p3 == VI_LINKTABLE) {
/* hack at tmp to setup for set link count call. */
+ memset((void *)&tfd, 0, sizeof(FdHandle_t)); /* minimalistic still, but a little cleaner */
+ tfd.fd_ih = &tmp;
tfd.fd_fd = fd;
- code = namei_SetLinkCount(&tfd, (Inode)0, 1, 0);
+ code = namei_SetLinkCount(&tfd, (Inode) 0, 1, 0);
}
-bad:
+ bad:
if (fd >= 0)
close(fd);
}
}
}
- return (code || (fd<0)) ? (Inode)-1 : tmp.ih_ino;
+ return (code || (fd < 0)) ? (Inode) - 1 : tmp.ih_ino;
}
/* namei_iopen */
-int namei_iopen(IHandle_t *h)
+int
+namei_iopen(IHandle_t * h)
{
int fd;
namei_t name;
/* Convert handle to file name. */
namei_HandleToName(&name, h);
- fd = open(name.n_path, O_RDWR, 0666);
+ fd = afs_open(name.n_path, O_RDWR, 0666);
return fd;
}
* handle passed in _is_ for the inode. We only check p1 for the special
* files.
*/
-int namei_dec(IHandle_t *ih, Inode ino, int p1)
+int
+namei_dec(IHandle_t * ih, Inode ino, int p1)
{
int count = 0;
namei_t name;
if ((ino & NAMEI_INODESPECIAL) == NAMEI_INODESPECIAL) {
IHandle_t *tmp;
- int was_closed = 0;
int inode_p1, tag;
- int type = (int)((ino>>NAMEI_TAGSHIFT) & NAMEI_TAGMASK);
+ int type = (int)((ino >> NAMEI_TAGSHIFT) & NAMEI_TAGMASK);
/* Verify this is the right file. */
IH_INIT(tmp, ih->ih_dev, ih->ih_vid, ino);
return -1;
}
- if ((GetOGM(fdP->fd_fd, &inode_p1, &tag)<0) || (inode_p1 != p1)) {
+ if ((GetOGM(fdP->fd_fd, &inode_p1, &tag) < 0) || (inode_p1 != p1)) {
FDH_REALLYCLOSE(fdP);
IH_RELEASE(tmp);
errno = EINVAL;
return -1;
}
-
+
/* If it's the link table itself, decrement the link count. */
if (type == VI_LINKTABLE) {
- if ((count = namei_GetLinkCount(fdP, (Inode)0, 1))<0) {
+ if ((count = namei_GetLinkCount(fdP, (Inode) 0, 1)) < 0) {
FDH_REALLYCLOSE(fdP);
IH_RELEASE(tmp);
return -1;
}
- count --;
- if (namei_SetLinkCount(fdP, (Inode)0, count<0 ? 0 : count, 1)<0) {
+ count--;
+ if (namei_SetLinkCount(fdP, (Inode) 0, count < 0 ? 0 : count, 1) <
+ 0) {
FDH_REALLYCLOSE(fdP);
IH_RELEASE(tmp);
return -1;
}
- if (count>0) {
+ if (count > 0) {
FDH_REALLYCLOSE(fdP);
IH_RELEASE(tmp);
return 0;
}
}
-
+
namei_HandleToName(&name, tmp);
if ((code = unlink(name.n_path)) == 0) {
if (type == VI_LINKTABLE) {
/* Try to remove directory. If it fails, that's ok.
* Salvage will clean up.
*/
- (void) namei_RemoveDataDirectories(&name);
+ (void)namei_RemoveDataDirectories(&name);
}
}
FDH_REALLYCLOSE(fdP);
IH_RELEASE(tmp);
- }
- else {
+ } else {
/* Get a file descriptor handle for this Inode */
fdP = IH_OPEN(ih);
if (fdP == NULL) {
return -1;
}
- if ((count = namei_GetLinkCount(fdP, ino, 1))<0) {
+ if ((count = namei_GetLinkCount(fdP, ino, 1)) < 0) {
FDH_REALLYCLOSE(fdP);
return -1;
}
- count --;
+ count--;
if (count >= 0) {
- if (namei_SetLinkCount(fdP, ino, count, 1)<0) {
+ if (namei_SetLinkCount(fdP, ino, count, 1) < 0) {
+ FDH_REALLYCLOSE(fdP);
+ return -1;
+ }
+ } else {
+ IHandle_t *th;
+ IH_INIT(th, ih->ih_dev, ih->ih_vid, ino);
+ Log("Warning: Lost ref on ihandle dev %d vid %d ino %" AFS_INT64_FMT "\n",
+ th->ih_dev, th->ih_vid, (int64_t) th->ih_ino);
+ IH_RELEASE(th);
+
+ /* If we're less than 0, someone presumably unlinked;
+ don't bother setting count to 0, but we need to drop a lock */
+ if (namei_SetLinkCount(fdP, ino, 0, 1) < 0) {
FDH_REALLYCLOSE(fdP);
return -1;
}
}
- if (count == 0 ) {
- IHandle_t th = *ih;
- th.ih_ino = ino;
- namei_HandleToName(&name, &th);
+ if (count == 0) {
+ IHandle_t *th;
+ IH_INIT(th, ih->ih_dev, ih->ih_vid, ino);
+
+ namei_HandleToName(&name, th);
+ IH_RELEASE(th);
code = unlink(name.n_path);
}
FDH_CLOSE(fdP);
return code;
}
-int namei_inc(IHandle_t *h, Inode ino, int p1)
+int
+namei_inc(IHandle_t * h, Inode ino, int p1)
{
int count;
int code = 0;
FdHandle_t *fdP;
if ((ino & NAMEI_INODESPECIAL) == NAMEI_INODESPECIAL) {
- int type = (int)((ino>>NAMEI_TAGSHIFT) & NAMEI_TAGMASK);
+ int type = (int)((ino >> NAMEI_TAGSHIFT) & NAMEI_TAGMASK);
if (type != VI_LINKTABLE)
return 0;
- ino = (Inode)0;
+ ino = (Inode) 0;
}
/* Get a file descriptor handle for this Inode */
return -1;
}
- if ((count = namei_GetLinkCount(fdP, ino, 1))<0)
+ if ((count = namei_GetLinkCount(fdP, ino, 1)) < 0)
code = -1;
else {
- count ++;
+ count++;
if (count > 7) {
errno = EINVAL;
code = -1;
count = 7;
}
- if (namei_SetLinkCount(fdP, ino, count, 1)<0)
+ if (namei_SetLinkCount(fdP, ino, count, 1) < 0)
code = -1;
}
if (code) {
return code;
}
+int
+namei_replace_file_by_hardlink(IHandle_t *hLink, IHandle_t *hTarget)
+{
+ afs_int32 code;
+ namei_t nameLink;
+ namei_t nameTarget;
+
+ /* Convert handle to file name. */
+ namei_HandleToName(&nameLink, hLink);
+ namei_HandleToName(&nameTarget, hTarget);
+
+ unlink(nameLink.n_path);
+ code = link(nameTarget.n_path, nameLink.n_path);
+ return code;
+}
+
+int
+namei_copy_on_write(IHandle_t *h)
+{
+ afs_int32 fd, code = 0;
+ namei_t name;
+ FdHandle_t *fdP;
+ struct afs_stat tstat;
+
+ namei_HandleToName(&name, h);
+ if (afs_stat(name.n_path, &tstat) < 0)
+ return EIO;
+ if (tstat.st_nlink > 1) { /* do a copy on write */
+ char path[259];
+ char *buf;
+ afs_size_t size;
+ afs_int32 tlen;
+
+ fdP = IH_OPEN(h);
+ if (!fdP)
+ return EIO;
+ strcpy(&path, name.n_path);
+ strcat(&path, "-tmp");
+ fd = afs_open(path, O_CREAT | O_EXCL | O_TRUNC | O_RDWR, 0);
+ if (fd < 0) {
+ FDH_CLOSE(fdP);
+ return EIO;
+ }
+ buf = malloc(8192);
+ if (!buf) {
+ close(fd);
+ unlink(path);
+ FDH_CLOSE(fdP);
+ return ENOMEM;
+ }
+ size = tstat.st_size;
+ FDH_SEEK(fdP, 0, 0);
+ while (size) {
+ tlen = size > 8192 ? 8192 : size;
+ if (FDH_READ(fdP, buf, tlen) != tlen)
+ break;
+ if (write(fd, buf, tlen) != tlen)
+ break;
+ size -= tlen;
+ }
+ close(fd);
+ FDH_REALLYCLOSE(fdP);
+ free(buf);
+ if (size)
+ code = EIO;
+ else {
+ unlink(name.n_path);
+ code = rename(path, name.n_path);
+ }
+ }
+ return code;
+}
+
/************************************************************************
* File Name Structure
************************************************************************
* short.
*/
#define LINKTABLE_WIDTH 2
-#define LINKTABLE_SHIFT 1 /* log 2 = 1 */
+#define LINKTABLE_SHIFT 1 /* log 2 = 1 */
-static void namei_GetLCOffsetAndIndexFromIno(Inode ino, int *offset, int *index)
+static void
+namei_GetLCOffsetAndIndexFromIno(Inode ino, afs_foff_t * offset, int *index)
{
- int toff = (int) (ino & NAMEI_VNODEMASK);
- int tindex = (int)((ino>>NAMEI_TAGSHIFT) & NAMEI_TAGMASK);
+ int toff = (int)(ino & NAMEI_VNODEMASK);
+ int tindex = (int)((ino >> NAMEI_TAGSHIFT) & NAMEI_TAGMASK);
- *offset = (toff << LINKTABLE_SHIFT) + 8; /* * 2 + sizeof stamp */
+ *offset = (afs_foff_t) ((toff << LINKTABLE_SHIFT) + 8); /* * 2 + sizeof stamp */
*index = (tindex << 1) + tindex;
}
* If lockit is set, lock the file and leave it locked upon a successful
* return.
*/
-int namei_GetLinkCount(FdHandle_t *h, Inode ino, int lockit)
+static int
+namei_GetLinkCount2(FdHandle_t * h, Inode ino, int lockit, int fixup, int nowrite)
{
unsigned short row = 0;
- int junk;
- int offset, index;
+ afs_foff_t offset;
+ ssize_t rc;
+ int index;
+ /* there's no linktable yet. the salvager will create one later */
+ if (h->fd_fd == -1 && fixup)
+ return 1;
namei_GetLCOffsetAndIndexFromIno(ino, &offset, &index);
if (lockit) {
- if (flock(h->fd_fd, LOCK_EX)<0)
+ if (flock(h->fd_fd, LOCK_EX) < 0)
return -1;
}
- if (lseek(h->fd_fd, offset, SEEK_SET) == -1)
+ if (afs_lseek(h->fd_fd, offset, SEEK_SET) == -1)
goto bad_getLinkByte;
-
- if (read(h->fd_fd, (char*)&row, sizeof(row))!=sizeof(row)) {
+
+ rc = read(h->fd_fd, (char *)&row, sizeof(row));
+ if ((rc == 0 || !((row >> index) & NAMEI_TAGMASK)) && fixup && nowrite)
+ return 1;
+ if (rc == 0 && fixup) {
+ struct stat st;
+ if (fstat(h->fd_fd, &st) || st.st_size >= offset+sizeof(row))
+ goto bad_getLinkByte;
+ FDH_TRUNC(h, offset+sizeof(row));
+ row = 1 << index;
+ rc = write(h->fd_fd, (char *)&row, sizeof(row));
+ }
+ if (rc != sizeof(row)) {
goto bad_getLinkByte;
}
-
- return (int) ((row >> index) & NAMEI_TAGMASK);
- bad_getLinkByte:
+ if (fixup && !((row >> index) & NAMEI_TAGMASK)) {
+ row |= 1<<index;
+ if (afs_lseek(h->fd_fd, offset, SEEK_SET) == -1)
+ goto bad_getLinkByte;
+ rc = write(h->fd_fd, (char *)&row, sizeof(row));
+ if (rc != sizeof(row))
+ goto bad_getLinkByte;
+ }
+
+ return (int)((row >> index) & NAMEI_TAGMASK);
+
+ bad_getLinkByte:
if (lockit)
flock(h->fd_fd, LOCK_UN);
return -1;
}
+int
+namei_GetLinkCount(FdHandle_t * h, Inode ino, int lockit)
+{
+ return namei_GetLinkCount2(h, ino, lockit, 0, 1);
+}
+
/* Return a free column index for this vnode. */
-static int GetFreeTag(IHandle_t *ih, int vno)
+static int
+GetFreeTag(IHandle_t * ih, int vno)
{
FdHandle_t *fdP;
- int offset;
+ afs_foff_t offset;
int col;
int coldata;
short row;
return -1;
/* Only one manipulates at a time. */
- if (flock(fdP->fd_fd, LOCK_EX)<0) {
+ if (flock(fdP->fd_fd, LOCK_EX) < 0) {
FDH_REALLYCLOSE(fdP);
return -1;
}
-
- offset = (vno << LINKTABLE_SHIFT) + 8; /* * 2 + sizeof stamp */
- if (lseek(fdP->fd_fd, offset, SEEK_SET) == -1) {
+
+ offset = (vno << LINKTABLE_SHIFT) + 8; /* * 2 + sizeof stamp */
+ if (afs_lseek(fdP->fd_fd, offset, SEEK_SET) == -1) {
goto badGetFreeTag;
}
-
- code = read(fdP->fd_fd, (char*)&row, sizeof(row));
+
+ code = read(fdP->fd_fd, (char *)&row, sizeof(row));
if (code != sizeof(row)) {
if (code != 0)
goto badGetFreeTag;
row = 0;
}
-
+
/* Now find a free column in this row and claim it. */
- coldata = 0x7;
- for (col = 0; col<NAMEI_MAXVOLS; col++) {
- coldata <<= col * 3;
+ for (col = 0; col < NAMEI_MAXVOLS; col++) {
+ coldata = 7 << (col * 3);
if ((row & coldata) == 0)
break;
}
- if (col >= NAMEI_MAXVOLS)
+ if (col >= NAMEI_MAXVOLS) {
+ errno = ENOSPC;
goto badGetFreeTag;
+ }
coldata = 1 << (col * 3);
row |= coldata;
- if (lseek(fdP->fd_fd, offset, SEEK_SET) == -1) {
+ if (afs_lseek(fdP->fd_fd, offset, SEEK_SET) == -1) {
goto badGetFreeTag;
}
- if (write(fdP->fd_fd, (char*)&row, sizeof(row))!=sizeof(row)) {
+ if (write(fdP->fd_fd, (char *)&row, sizeof(row)) != sizeof(row)) {
goto badGetFreeTag;
}
FDH_SYNC(fdP);
FDH_REALLYCLOSE(fdP);
return col;;
- badGetFreeTag:
+ badGetFreeTag:
flock(fdP->fd_fd, LOCK_UN);
FDH_REALLYCLOSE(fdP);
return -1;
* If locked is set, assume file is locked. Otherwise, lock file before
* proceeding to modify it.
*/
-int namei_SetLinkCount(FdHandle_t *fdP, Inode ino, int count, int locked)
+int
+namei_SetLinkCount(FdHandle_t * fdP, Inode ino, int count, int locked)
{
- int offset, index;
+ afs_foff_t offset;
+ int index;
unsigned short row;
int junk;
int code = -1;
namei_GetLCOffsetAndIndexFromIno(ino, &offset, &index);
-
if (!locked) {
- if (flock(fdP->fd_fd, LOCK_EX)<0) {
+ if (flock(fdP->fd_fd, LOCK_EX) < 0) {
return -1;
}
}
- if (lseek(fdP->fd_fd, offset, SEEK_SET) == -1) {
+ if (afs_lseek(fdP->fd_fd, offset, SEEK_SET) == -1) {
errno = EBADF;
goto bad_SetLinkCount;
}
-
- code = read(fdP->fd_fd, (char*)&row, sizeof(row));
+
+ code = read(fdP->fd_fd, (char *)&row, sizeof(row));
if (code != sizeof(row)) {
if (code != 0) {
errno = EBADF;
}
row = 0;
}
-
+
junk = 7 << index;
count <<= index;
row &= (unsigned short)~junk;
row |= (unsigned short)count;
- if (lseek(fdP->fd_fd, offset, SEEK_SET) == -1) {
- errno = EBADF;
+ if (afs_lseek(fdP->fd_fd, offset, SEEK_SET) == -1) {
+ errno = EBADF;
goto bad_SetLinkCount;
}
- if (write(fdP->fd_fd, (char*)&row, sizeof(short)) != sizeof(short)) {
+ if (write(fdP->fd_fd, (char *)&row, sizeof(short)) != sizeof(short)) {
errno = EBADF;
goto bad_SetLinkCount;
}
code = 0;
-
-bad_SetLinkCount:
+
+ bad_SetLinkCount:
flock(fdP->fd_fd, LOCK_UN);
return code;
static int DecodeInode(char *dpath, char *name, struct ViceInodeInfo *info,
int volid);
static int DecodeVolumeName(char *name, int *vid);
-static int namei_ListAFSSubDirs(IHandle_t *dirIH,
- int (*write_fun)(FILE *, struct ViceInodeInfo *,
- char *, char *),
- FILE *fp,
- int (*judgeFun)(struct ViceInodeInfo *, int vid),
- int singleVolumeNumber);
+static int namei_ListAFSSubDirs(IHandle_t * dirIH,
+ int (*write_fun) (FILE *,
+ struct ViceInodeInfo *,
+ char *, char *), FILE * fp,
+ int (*judgeFun) (struct ViceInodeInfo *,
+ afs_uint32 vid, void *),
+ afs_uint32 singleVolumeNumber, void *rock);
/* WriteInodeInfo
* This is written as a callback simply so that other listing routines
* can use the same inode reading code.
*/
-static int WriteInodeInfo(FILE *fp, struct ViceInodeInfo *info, char *dir,
- char *name)
+static int
+WriteInodeInfo(FILE * fp, struct ViceInodeInfo *info, char *dir, char *name)
{
int n;
n = fwrite(info, sizeof(*info), 1, fp);
}
-int mode_errors; /* Number of errors found in mode bits on directories. */
-void VerifyDirPerms(char *path)
+int mode_errors; /* Number of errors found in mode bits on directories. */
+void
+VerifyDirPerms(char *path)
{
- struct stat status;
+ struct afs_stat status;
- if (stat(path, &status)<0) {
+ if (afs_stat(path, &status) < 0) {
Log("Unable to stat %s. Please manually verify mode bits for this"
" directory\n", path);
- }
- else {
+ } else {
if (((status.st_mode & 0777) != 0700) || (status.st_uid != 0))
- mode_errors ++;
+ mode_errors++;
}
}
*
* If the resultFile is NULL, then don't call the write routine.
*/
-int ListViceInodes(char *devname, char *mountedOn, char *resultFile,
- int (*judgeInode)(struct ViceInodeInfo *info, int vid),
- int singleVolumeNumber, int *forcep,
- int forceR, char *wpath)
+int
+ListViceInodes(char *devname, char *mountedOn, char *resultFile,
+ int (*judgeInode) (struct ViceInodeInfo * info, afs_uint32 vid, void *rock),
+ afs_uint32 singleVolumeNumber, int *forcep, int forceR, char *wpath,
+ void *rock)
{
- FILE *fp = (FILE*)-1;
+ FILE *fp = (FILE *) - 1;
int ninodes;
- struct stat status;
+ struct afs_stat status;
+
+ *forcep = 0; /* no need to salvage until further notice */
if (resultFile) {
- fp = fopen(resultFile, "w");
+ fp = afs_fopen(resultFile, "w");
if (!fp) {
Log("Unable to create inode description file %s\n", resultFile);
return -1;
mode_errors = 0;
VerifyDirPerms(mountedOn);
- ninodes = namei_ListAFSFiles(mountedOn, WriteInodeInfo, fp,
- judgeInode, singleVolumeNumber);
+ ninodes =
+ namei_ListAFSFiles(mountedOn, WriteInodeInfo, fp, judgeInode,
+ singleVolumeNumber, rock);
if (!resultFile)
return ninodes;
/*
* Paranoia: check that the file is really the right size
*/
- if (stat(resultFile, &status) == -1) {
+ if (afs_stat(resultFile, &status) == -1) {
Log("Unable to successfully stat inode file for %s\n", mountedOn);
return -2;
}
- if (status.st_size != ninodes * sizeof (struct ViceInodeInfo)) {
- Log("Wrong size (%d instead of %d) in inode file for %s\n",
- status.st_size, ninodes * sizeof (struct ViceInodeInfo),
+ if (status.st_size != ninodes * sizeof(struct ViceInodeInfo)) {
+ Log("Wrong size (%d instead of %d) in inode file for %s\n",
+ status.st_size, ninodes * sizeof(struct ViceInodeInfo),
mountedOn);
return -2;
}
*
* Returns <0 on error, else number of files found to match.
*/
-int namei_ListAFSFiles(char *dev,
- int (*writeFun)(FILE *, struct ViceInodeInfo *, char *,
- char *),
- FILE *fp,
- int (*judgeFun)(struct ViceInodeInfo *, int),
- int singleVolumeNumber)
+int
+namei_ListAFSFiles(char *dev,
+ int (*writeFun) (FILE *, struct ViceInodeInfo *, char *,
+ char *), FILE * fp,
+ int (*judgeFun) (struct ViceInodeInfo *, afs_uint32, void *),
+ afs_uint32 singleVolumeNumber, void *rock)
{
IHandle_t ih;
namei_t name;
static void FreeZLCList(void);
#endif
- memset((void*)&ih, 0, sizeof(IHandle_t));
+ memset((void *)&ih, 0, sizeof(IHandle_t));
ih.ih_dev = volutil_GetPartitionID(dev);
if (singleVolumeNumber) {
ih.ih_vid = singleVolumeNumber;
namei_HandleToVolDir(&name, &ih);
- ninodes = namei_ListAFSSubDirs(&ih, writeFun, fp,
- judgeFun, singleVolumeNumber);
+ ninodes =
+ namei_ListAFSSubDirs(&ih, writeFun, fp, judgeFun,
+ singleVolumeNumber, rock);
if (ninodes < 0)
return ninodes;
- }
- else {
+ } else {
/* Find all volume data directories and descend through them. */
namei_HandleToInodeDir(&name, &ih);
ninodes = 0;
dirp1 = opendir(name.n_path);
if (!dirp1)
return 0;
- while (dp1 = readdir(dirp1)) {
- if (*dp1->d_name == '.') continue;
- (void) strcpy(path2, name.n_path);
- (void) strcat(path2, "/");
- (void) strcat(path2, dp1->d_name);
+ while ((dp1 = readdir(dirp1))) {
+ if (*dp1->d_name == '.')
+ continue;
+ (void)strcpy(path2, name.n_path);
+ (void)strcat(path2, "/");
+ (void)strcat(path2, dp1->d_name);
dirp2 = opendir(path2);
if (dirp2) {
- while (dp2 = readdir(dirp2)) {
- if (*dp2->d_name == '.') continue;
+ while ((dp2 = readdir(dirp2))) {
+ if (*dp2->d_name == '.')
+ continue;
if (!DecodeVolumeName(dp2->d_name, &ih.ih_vid)) {
- ninodes += namei_ListAFSSubDirs(&ih, writeFun, fp,
- judgeFun, 0);
+ ninodes +=
+ namei_ListAFSSubDirs(&ih, writeFun, fp, judgeFun,
+ 0, rock);
}
}
closedir(dirp2);
* < 0 - an error
* > = 0 - number of AFS files found.
*/
-static int namei_ListAFSSubDirs(IHandle_t *dirIH,
- int (*writeFun)(FILE *, struct ViceInodeInfo *,
- char *, char *),
- FILE *fp,
- int (*judgeFun)(struct ViceInodeInfo *, int),
- int singleVolumeNumber)
+static int
+namei_ListAFSSubDirs(IHandle_t * dirIH,
+ int (*writeFun) (FILE *, struct ViceInodeInfo *, char *,
+ char *), FILE * fp,
+ int (*judgeFun) (struct ViceInodeInfo *, afs_uint32, void *),
+ afs_uint32 singleVolumeNumber, void *rock)
{
- int i;
IHandle_t myIH = *dirIH;
namei_t name;
char path1[512], path2[512], path3[512];
DIR *dirp1, *dirp2, *dirp3;
struct dirent *dp1, *dp2, *dp3;
- char *s;
struct ViceInodeInfo info;
- int tag, vno;
FdHandle_t linkHandle;
int ninodes = 0;
#ifdef DELETE_ZLC
+ int i;
static void AddToZLCDeleteList(char dir, char *name);
static void DeleteZLCFiles(char *path);
#endif
namei_HandleToVolDir(&name, &myIH);
- (void) strcpy(path1, name.n_path);
+ (void)strcpy(path1, name.n_path);
/* Do the directory containing the special files first to pick up link
* counts.
*/
- (void) strcat(path1, "/");
- (void) strcat(path1, NAMEI_SPECDIR);
+ (void)strcat(path1, "/");
+ (void)strcat(path1, NAMEI_SPECDIR);
linkHandle.fd_fd = -1;
dirp1 = opendir(path1);
if (dirp1) {
- while (dp1 = readdir(dirp1)) {
- if (*dp1->d_name == '.') continue;
- if (DecodeInode(path1, dp1->d_name, &info, myIH.ih_vid)<0)
+ while ((dp1 = readdir(dirp1))) {
+ if (*dp1->d_name == '.')
+ continue;
+ if (DecodeInode(path1, dp1->d_name, &info, myIH.ih_vid) < 0)
continue;
if (info.u.param[2] != VI_LINKTABLE) {
info.linkCount = 1;
- }
- else {
+ } else {
/* Open this handle */
- (void) sprintf(path2, "%s/%s", path1, dp1->d_name);
- linkHandle.fd_fd = open(path2, O_RDONLY, 0666);
- info.linkCount = namei_GetLinkCount(&linkHandle, (Inode)0, 0);
+ (void)afs_snprintf(path2, sizeof path2, "%s/%s", path1,
+ dp1->d_name);
+ linkHandle.fd_fd = afs_open(path2, Testing ? O_RDONLY : O_RDWR, 0666);
+ info.linkCount =
+ namei_GetLinkCount2(&linkHandle, (Inode) 0, 1, 1, Testing);
}
- if (judgeFun && !(*judgeFun)(&info, singleVolumeNumber))
+ if (judgeFun && !(*judgeFun) (&info, singleVolumeNumber, rock))
continue;
- if ((*writeFun)(fp, &info, path1, dp1->d_name)<0) {
+ if ((*writeFun) (fp, &info, path1, dp1->d_name) < 0) {
if (linkHandle.fd_fd >= 0)
close(linkHandle.fd_fd);
closedir(dirp1);
return -1;
}
- ninodes ++;
+ ninodes++;
}
closedir(dirp1);
}
/* Now run through all the other subdirs */
namei_HandleToVolDir(&name, &myIH);
- (void) strcpy(path1, name.n_path);
-
+ (void)strcpy(path1, name.n_path);
+
dirp1 = opendir(path1);
if (dirp1) {
- while (dp1 = readdir(dirp1)) {
- if (*dp1->d_name == '.') continue;
+ while ((dp1 = readdir(dirp1))) {
+ if (*dp1->d_name == '.')
+ continue;
if (!strcmp(dp1->d_name, NAMEI_SPECDIR))
continue;
-
+
/* Now we've got a next level subdir. */
- (void) strcpy(path2, path1);
- (void) strcat(path2, "/");
- (void) strcat(path2, dp1->d_name);
+ (void)strcpy(path2, path1);
+ (void)strcat(path2, "/");
+ (void)strcat(path2, dp1->d_name);
dirp2 = opendir(path2);
if (dirp2) {
- while (dp2 = readdir(dirp2)) {
- if (*dp2->d_name == '.') continue;
-
+ while ((dp2 = readdir(dirp2))) {
+ if (*dp2->d_name == '.')
+ continue;
+
/* Now we've got to the actual data */
- (void) strcpy(path3, path2);
- (void) strcat(path3, "/");
- (void) strcat(path3, dp2->d_name);
+ (void)strcpy(path3, path2);
+ (void)strcat(path3, "/");
+ (void)strcat(path3, dp2->d_name);
dirp3 = opendir(path3);
if (dirp3) {
- while (dp3 = readdir(dirp3)) {
- if (*dp3->d_name == '.') continue;
- if (DecodeInode(path3, dp3->d_name, &info,
- myIH.ih_vid)<0)
+ while ((dp3 = readdir(dirp3))) {
+ if (*dp3->d_name == '.')
+ continue;
+ if (DecodeInode
+ (path3, dp3->d_name, &info, myIH.ih_vid) < 0)
continue;
- info.linkCount = namei_GetLinkCount(&linkHandle,
- info.inodeNumber, 0);
+ info.linkCount =
+ namei_GetLinkCount2(&linkHandle,
+ info.inodeNumber, 1, 1, Testing);
if (info.linkCount == 0) {
#ifdef DELETE_ZLC
- Log("Found 0 link count file %s/%s, deleting it.\n",
- path3, dp3->d_name);
+ Log("Found 0 link count file %s/%s, deleting it.\n", path3, dp3->d_name);
AddToZLCDeleteList((char)i, dp3->d_name);
#else
- Log("Found 0 link count file %s/%s.\n",
- path3, dp3->d_name);
+ Log("Found 0 link count file %s/%s.\n", path3,
+ dp3->d_name);
#endif
continue;
}
if (judgeFun
- && !(*judgeFun)(&info, singleVolumeNumber))
+ && !(*judgeFun) (&info, singleVolumeNumber, rock))
continue;
- if ((*writeFun)(fp, &info, path3, dp3->d_name)<0) {
+ if ((*writeFun) (fp, &info, path3, dp3->d_name) <
+ 0) {
close(linkHandle.fd_fd);
closedir(dirp3);
closedir(dirp2);
closedir(dirp1);
return -1;
}
- ninodes ++;
+ ninodes++;
}
closedir(dirp3);
}
return ninodes;
}
-static int DecodeVolumeName(char *name, int *vid)
+static int
+DecodeVolumeName(char *name, int *vid)
{
if (strlen(name) <= 2)
return -1;
- *vid = (int) flipbase64_to_int64(name);
+ *vid = (int)flipbase64_to_int64(name);
return 0;
}
* Get the inode number from the name.
* Get
*/
-static int DecodeInode(char *dpath, char *name, struct ViceInodeInfo *info,
- int volid)
+static int
+DecodeInode(char *dpath, char *name, struct ViceInodeInfo *info, int volid)
{
char fpath[512];
- struct stat status;
+ struct afs_stat status;
int parm, tag;
+ lb64_string_t check;
- (void) strcpy(fpath, dpath);
- (void) strcat(fpath, "/");
- (void) strcat(fpath, name);
+ (void)strcpy(fpath, dpath);
+ (void)strcat(fpath, "/");
+ (void)strcat(fpath, name);
- if (stat(fpath, &status)<0) {
+ if (afs_stat(fpath, &status) < 0) {
return -1;
}
info->byteCount = status.st_size;
- info->inodeNumber = flipbase64_to_int64(name);
+ info->inodeNumber = (Inode) flipbase64_to_int64(name);
+
+ int64_to_flipbase64(check, info->inodeNumber);
+ if (strcmp(name, check))
+ return -1;
GetOGMFromStat(&status, &parm, &tag);
if ((info->inodeNumber & NAMEI_INODESPECIAL) == NAMEI_INODESPECIAL) {
info->u.param[1] = -1;
info->u.param[2] = tag;
info->u.param[3] = volid;
- }
- else {
+ } else {
/* p1 - vid, p2 - vno, p3 - uniq, p4 - dv */
info->u.param[0] = volid;
info->u.param[1] = (int)(info->inodeNumber & NAMEI_VNODEMASK);
info->u.param[2] = (int)((info->inodeNumber >> NAMEI_UNIQSHIFT)
- & (Inode)NAMEI_UNIQMASK);
+ & (Inode) NAMEI_UNIQMASK);
info->u.param[3] = parm;
}
return 0;
}
+/*
+ * Convert the VolumeInfo file from RO to RW
+ * this routine is called by namei_convertROtoRWvolume()
+ */
+
+static afs_int32
+convertVolumeInfo(int fdr, int fdw, afs_uint32 vid)
+{
+ struct VolumeDiskData vd;
+ char *p;
+
+ if (read(fdr, &vd, sizeof(struct VolumeDiskData)) !=
+ sizeof(struct VolumeDiskData)) {
+ Log("1 convertVolumeInfo: read failed for %lu with code %d\n", vid,
+ errno);
+ return -1;
+ }
+ vd.restoredFromId = vd.id; /* remember the RO volume here */
+ vd.cloneId = vd.id;
+ vd.id = vd.parentId;
+ vd.type = RWVOL;
+ vd.dontSalvage = 0;
+ vd.uniquifier += 5000; /* just in case there are still file copies from
+ * the old RW volume around */
+ p = strrchr(vd.name, '.');
+ if (p && !strcmp(p, ".readonly")) {
+ memset(p, 0, 9);
+ }
+ if (write(fdw, &vd, sizeof(struct VolumeDiskData)) !=
+ sizeof(struct VolumeDiskData)) {
+ Log("1 convertVolumeInfo: write failed for %lu with code %d\n", vid,
+ errno);
+ return -1;
+ }
+ return 0;
+}
+
+/*
+ * Convert a RO-volume into a RW-volume
+ *
+ * This function allows to recover very fast from the loss of a partition
+ * from RO-copies if all RO-Copies exist on another partition.
+ * Then these RO-volumes can be made to the new RW-volumes.
+ * Backup of RW-volumes then consists in "vos release".
+ *
+ * We must make sure in this partition exists only the RO-volume which
+ * is typical for remote replicas.
+ *
+ * Then the linktable is already ok,
+ * the vnode files need to be renamed
+ * the volinfo file needs to be replaced by another one with
+ * slightly different contents and new name.
+ * The volume header file of the RO-volume in the /vicep<x> directory
+ * is destroyed by this call. A new header file for the RW-volume must
+ * be created after return from this routine.
+ */
+
+int
+namei_ConvertROtoRWvolume(char *pname, afs_uint32 volumeId)
+{
+#ifdef FSSYNC_BUILD_CLIENT
+ namei_t n;
+ char dir_name[512], oldpath[512], newpath[512];
+ char smallName[64];
+ char largeName[64];
+ char infoName[64];
+ IHandle_t t_ih;
+ IHandle_t *ih;
+ char infoSeen = 0;
+ char smallSeen = 0;
+ char largeSeen = 0;
+ char linkSeen = 0;
+ int code, fd, fd2;
+ char *p;
+ DIR *dirp;
+ Inode ino;
+ struct dirent *dp;
+ struct DiskPartition64 *partP;
+ struct ViceInodeInfo info;
+ struct VolumeDiskHeader h;
+ char headername[16];
+ afs_int32 error = 0;
+
+ (void)afs_snprintf(headername, sizeof headername, VFORMAT, afs_cast_uint32(volumeId));
+ (void)afs_snprintf(oldpath, sizeof oldpath, "%s/%s", pname, headername);
+ fd = open(oldpath, O_RDONLY);
+ if (fd < 0) {
+ Log("1 namei_ConvertROtoRWvolume: Couldn't open header for RO-volume %lu.\n", volumeId);
+ return ENOENT;
+ }
+ if (read(fd, &h, sizeof(h)) != sizeof(h)) {
+ Log("1 namei_ConvertROtoRWvolume: Couldn't read header for RO-volume %lu.\n", volumeId);
+ close(fd);
+ return EIO;
+ }
+ close(fd);
+ FSYNC_VolOp(volumeId, pname, FSYNC_VOL_BREAKCBKS, 0, NULL);
+
+ for (partP = DiskPartitionList; partP && strcmp(partP->name, pname);
+ partP = partP->next);
+ if (!partP) {
+ Log("1 namei_ConvertROtoRWvolume: Couldn't find DiskPartition for %s\n", pname);
+ return EIO;
+ }
+ ino = namei_MakeSpecIno(h.parent, VI_LINKTABLE);
+ IH_INIT(ih, partP->device, h.parent, ino);
+
+ namei_HandleToName(&n, ih);
+ strcpy(dir_name, n.n_path);
+ p = strrchr(dir_name, '/');
+ *p = 0;
+ dirp = opendir(dir_name);
+ if (!dirp) {
+ Log("1 namei_ConvertROtoRWvolume: Could not opendir(%s)\n", dir_name);
+ return EIO;
+ }
+
+ while ((dp = readdir(dirp))) {
+ /* struct ViceInodeInfo info; */
+
+ if (*dp->d_name == '.')
+ continue;
+ if (DecodeInode(dir_name, dp->d_name, &info, ih->ih_vid) < 0) {
+ Log("1 namei_ConvertROtoRWvolume: DecodeInode failed for %s/%s\n",
+ dir_name, dp->d_name);
+ closedir(dirp);
+ return -1;
+ }
+ if (info.u.param[1] != -1) {
+ Log("1 namei_ConvertROtoRWvolume: found other than volume special file %s/%s\n", dir_name, dp->d_name);
+ closedir(dirp);
+ return -1;
+ }
+ if (info.u.param[0] != volumeId) {
+ if (info.u.param[0] == ih->ih_vid) {
+ if (info.u.param[2] == VI_LINKTABLE) { /* link table */
+ linkSeen = 1;
+ continue;
+ }
+ }
+ Log("1 namei_ConvertROtoRWvolume: found special file %s/%s for volume %lu\n", dir_name, dp->d_name, info.u.param[0]);
+ closedir(dirp);
+ return VVOLEXISTS;
+ }
+ if (info.u.param[2] == VI_VOLINFO) { /* volume info file */
+ strcpy(infoName, dp->d_name);
+ infoSeen = 1;
+ } else if (info.u.param[2] == VI_SMALLINDEX) { /* small vnodes file */
+ strcpy(smallName, dp->d_name);
+ smallSeen = 1;
+ } else if (info.u.param[2] == VI_LARGEINDEX) { /* large vnodes file */
+ strcpy(largeName, dp->d_name);
+ largeSeen = 1;
+ } else {
+ closedir(dirp);
+ Log("1 namei_ConvertROtoRWvolume: unknown type %d of special file found : %s/%s\n", info.u.param[2], dir_name, dp->d_name);
+ return -1;
+ }
+ }
+ closedir(dirp);
+
+ if (!infoSeen || !smallSeen || !largeSeen || !linkSeen) {
+ Log("1 namei_ConvertROtoRWvolume: not all special files found in %s\n", dir_name);
+ return -1;
+ }
+
+ /*
+ * If we come here then there was only a RO-volume and we can safely
+ * proceed.
+ */
+
+ memset(&t_ih, 0, sizeof(t_ih));
+ t_ih.ih_dev = ih->ih_dev;
+ t_ih.ih_vid = ih->ih_vid;
+
+ (void)afs_snprintf(oldpath, sizeof oldpath, "%s/%s", dir_name, infoName);
+ fd = afs_open(oldpath, O_RDWR, 0);
+ if (fd < 0) {
+ Log("1 namei_ConvertROtoRWvolume: could not open RO info file: %s\n",
+ oldpath);
+ return -1;
+ }
+ t_ih.ih_ino = namei_MakeSpecIno(ih->ih_vid, VI_VOLINFO);
+ namei_HandleToName(&n, &t_ih);
+ fd2 = afs_open(n.n_path, O_CREAT | O_EXCL | O_TRUNC | O_RDWR, 0);
+ if (fd2 < 0) {
+ Log("1 namei_ConvertROtoRWvolume: could not create RW info file: %s\n", n.n_path);
+ close(fd);
+ return -1;
+ }
+ code = convertVolumeInfo(fd, fd2, ih->ih_vid);
+ close(fd);
+ if (code) {
+ close(fd2);
+ unlink(n.n_path);
+ return -1;
+ }
+ SetOGM(fd2, ih->ih_vid, 1);
+ close(fd2);
+
+ t_ih.ih_ino = namei_MakeSpecIno(ih->ih_vid, VI_SMALLINDEX);
+ namei_HandleToName(&n, &t_ih);
+ (void)afs_snprintf(newpath, sizeof newpath, "%s/%s", dir_name, smallName);
+ fd = afs_open(newpath, O_RDWR, 0);
+ if (fd < 0) {
+ Log("1 namei_ConvertROtoRWvolume: could not open SmallIndex file: %s\n", newpath);
+ return -1;
+ }
+ SetOGM(fd, ih->ih_vid, 2);
+ close(fd);
+ link(newpath, n.n_path);
+ unlink(newpath);
+
+ t_ih.ih_ino = namei_MakeSpecIno(ih->ih_vid, VI_LARGEINDEX);
+ namei_HandleToName(&n, &t_ih);
+ (void)afs_snprintf(newpath, sizeof newpath, "%s/%s", dir_name, largeName);
+ fd = afs_open(newpath, O_RDWR, 0);
+ if (fd < 0) {
+ Log("1 namei_ConvertROtoRWvolume: could not open LargeIndex file: %s\n", newpath);
+ return -1;
+ }
+ SetOGM(fd, ih->ih_vid, 3);
+ close(fd);
+ link(newpath, n.n_path);
+ unlink(newpath);
+
+ unlink(oldpath);
+
+ h.id = h.parent;
+ h.volumeInfo_hi = h.id;
+ h.smallVnodeIndex_hi = h.id;
+ h.largeVnodeIndex_hi = h.id;
+ h.linkTable_hi = h.id;
+ (void)afs_snprintf(headername, sizeof headername, VFORMAT, afs_cast_uint32(h.id));
+ (void)afs_snprintf(newpath, sizeof newpath, "%s/%s", pname, headername);
+ fd = open(newpath, O_CREAT | O_EXCL | O_RDWR, 0644);
+ if (fd < 0) {
+ Log("1 namei_ConvertROtoRWvolume: Couldn't create header for RW-volume %lu.\n", h.id);
+ return EIO;
+ }
+ if (write(fd, &h, sizeof(h)) != sizeof(h)) {
+ Log("1 namei_ConvertROtoRWvolume: Couldn't write header for RW-volume\
+ %lu.\n", h.id);
+ close(fd);
+ return EIO;
+ }
+ close(fd);
+ if (unlink(oldpath) < 0) {
+ Log("1 namei_ConvertROtoRWvolume: Couldn't unlink RO header, error = %d\n", error);
+ }
+ FSYNC_VolOp(volumeId, pname, FSYNC_VOL_DONE, 0, NULL);
+ FSYNC_VolOp(h.id, pname, FSYNC_VOL_ON, 0, NULL);
+#endif
+ return 0;
+}
/* PrintInode
*
* returns a static string used to print either 32 or 64 bit inode numbers.
*/
-char * PrintInode(char *s, Inode ino)
+char *
+PrintInode(char *s, Inode ino)
{
- static afs_ino_str_t result;
+ static afs_ino_str_t result;
if (!s)
s = result;
- (void) sprintf((char*)s, "%Lu", ino);
+ (void)afs_snprintf(s, sizeof(afs_ino_str_t), "%llu", (afs_uintmax_t) ino);
- return (char*)s;
+ return s;
}
static zlcList_t *zlcAnchor = NULL;
static zlcList_t *zlcCur = NULL;
-static void AddToZLCDeleteList(char dir, char *name)
+static void
+AddToZLCDeleteList(char dir, char *name)
{
assert(strlen(name) <= MAX_ZLC_NAMELEN - 3);
if (zlcCur && zlcCur->zlc_next)
zlcCur = zlcCur->zlc_next;
else {
- zlcList_t *tmp = (zlcList_t*)malloc(sizeof(zlcList_t));
+ zlcList_t *tmp = (zlcList_t *) malloc(sizeof(zlcList_t));
if (!tmp)
return;
if (!zlcAnchor) {
zlcAnchor = tmp;
- }
- else {
+ } else {
zlcCur->zlc_next = tmp;
}
zlcCur = tmp;
}
}
- (void) sprintf(zlcCur->zlc_names[zlcCur->zlc_n], "%c\\%s", dir, name);
- zlcCur->zlc_n ++;
+ (void)sprintf(zlcCur->zlc_names[zlcCur->zlc_n], "%c\\%s", dir, name);
+ zlcCur->zlc_n++;
}
-static void DeleteZLCFiles(char *path)
+static void
+DeleteZLCFiles(char *path)
{
zlcList_t *z;
int i;
char fname[1024];
for (z = zlcAnchor; z; z = z->zlc_next) {
- for (i=0; i < z->zlc_n; i++) {
- (void) sprintf(fname, "%s\\%s", path, z->zlc_names[i]);
- if (namei_unlink(fname)<0) {
+ for (i = 0; i < z->zlc_n; i++) {
+ (void)sprintf(fname, "%s\\%s", path, z->zlc_names[i]);
+ if (namei_unlink(fname) < 0) {
Log("ZLC: Can't unlink %s, dos error = %d\n", fname,
- GetLastError());
+ GetLastError());
}
}
- z->zlc_n = 0; /* Can reuse space. */
+ z->zlc_n = 0; /* Can reuse space. */
}
zlcCur = zlcAnchor;
}
-static void FreeZLCList(void)
+static void
+FreeZLCList(void)
{
zlcList_t *tnext;
zlcList_t *i;
#endif
#endif /* AFS_NAMEI_ENV */
-
git://git.openafs.org / openafs.git / blobdiff