int pnfs_ds_unlink_file(pnfs_client_t * pnfsclient,
pnfs_ds_file_t * pfile)
{
component4 name;
char nameval[MAXNAMLEN];
char filename[MAXNAMLEN];
unsigned int i;
int rc = 0;
if(!pnfsclient || !pfile)
return NFS4ERR_SERVERFAULT;
name.utf8string_val = nameval;
name.utf8string_len = 0;
snprintf(filename, MAXNAMLEN, "%s", pfile->location.str_mds_handle);
if(str2utf8(filename, &name) == -1)
return NFS4ERR_SERVERFAULT;
for(i = 0; i < pnfsclient->nb_ds; i++)
{
if((rc =
pnfs_unlink_ds_partfile(&(pnfsclient->ds_client[i]), name,
&(pfile->filepart[i]))) != NFS4_OK)
return rc;
}
return NFS4_OK;
} /* pnfs_ds_unlink_file */
int fsal_internal_proxy_fsal_path_2_utf8(fsal_path_t * ppath, utf8string * utf8str)
{
char tmpstr[FSAL_MAX_PATH_LEN];
fsal_status_t fsal_status;
if(ppath == NULL || utf8str == NULL)
return FALSE;
fsal_status = FSAL_path2str(ppath, tmpstr, FSAL_MAX_NAME_LEN);
if(fsal_status.major != ERR_FSAL_NO_ERROR)
return FALSE;
if(utf8str->utf8string_len == 0)
{
if((utf8str->utf8string_val = gsh_malloc(ppath->len)) == NULL)
return FALSE;
else
utf8str->utf8string_len = ppath->len;
}
if(str2utf8(tmpstr, utf8str) == -1)
return FALSE;
return TRUE;
} /* fsal_internal_proxy_fsal_path_2_utf8 */
int fsal_internal_proxy_fsal_name_2_utf8(fsal_name_t * pname, utf8string * utf8str)
{
char tmpstr[FSAL_MAX_NAME_LEN];
fsal_status_t fsal_status;
if(pname == NULL || utf8str == NULL)
return FALSE;
fsal_status = FSAL_name2str(pname, tmpstr, FSAL_MAX_NAME_LEN);
if(fsal_status.major != ERR_FSAL_NO_ERROR)
return FALSE;
if(utf8str->utf8string_len == 0)
{
if((utf8str->utf8string_val = (char *)Mem_Alloc_Label(pname->len,
"fsal_internal_proxy_fsal_name_2_utf8")) == NULL)
return FALSE;
else
utf8str->utf8string_len = pname->len;
}
if(str2utf8(tmpstr, utf8str) == -1)
return FALSE;
return TRUE;
} /* fsal_internal_proxy_fsal_name_2_utf8 */
void PR(){
pair * p;
tagged * t;
obj y = TOS();
if (AFIX(y))
printf ("%ld", OBJ2FIX(y));
else if (ACHAR(y)){
char * utf8 = cpt2utf8(OBJ2CHAR(y));
printf ("%s", utf8);
free(utf8);
}
else if (ASYM(y))
printf ("%s", ((symbol *)y)->value);
else if (AFLOAT(y))
printf ("%g", ((flonum*)y)->value);
else if (ASTR(y))
printf ("%s", str2utf8 ((string *) y));
else if (AFN(y))
printf ("#<procedure>");
else if (ATBL(y))
pr_tbl((table *) y);
else if (ATAG(y)){
t = (tagged *) y;
printf ("#3(tagged ");
PUSH(t->ctype); PR();
printf (" ");
TOS() = t->content; PR(); sp--;
printf (")");
}
else if (APAIR(y)){
printf ("(");
while (APAIR(y)){
p = (pair *) y;
PUSH(p->car); PR(); sp--;
y = p->cdr;
if (APAIR(y))
printf (" ");
}
if (y != SYM2OBJ("nil")){
PUSH(y);
printf (" . ");
PR(); sp--;
}
printf (")");
}
}
/**
*
* gid2utf8: converts a gid to a utf8 string descriptor.
*
* Converts a gid to a utf8 string descriptor.
*
* @param gid [IN] the input gid
* @param utf8str [OUT] computed UTF8 string descriptor
*
* @return the length of the utf8 buffer if succesfull, -1 if failed
*
*/
int gid2utf8(gid_t gid, utf8string * utf8str)
{
char buff[NFS4_MAX_DOMAIN_LEN];
unsigned int len = 0;
if(gid2str(gid, buff) == -1)
return -1;
len = strlen(buff);
/* A matching gid was found */
/* Do the conversion to uft8 format */
if((utf8str->utf8string_val = (char *)Mem_Alloc_Label(len, "gid2utf8")) == NULL)
return -1;
else
utf8str->utf8string_len = len;
return str2utf8(buff, utf8str);
} /* gid2utf8 */
/**
*
* uid2utf8: converts a uid to a utf8 string descriptor.
*
* Converts a uid to a utf8 string descriptor.
*
* @param uid [IN] the input uid
* @param utf8str [OUT] computed UTF8 string descriptor
*
* @return the length of the utf8 buffer if succesfull, -1 if failed
*
*/
int uid2utf8(uid_t uid, utf8string * utf8str)
{
char buff[NFS4_MAX_DOMAIN_LEN];
unsigned int len = 0;
if(uid2str(uid, buff) == -1)
return -1;
len = strlen(buff);
/* A matching uid was found, now do the conversion to utf8 */
if((utf8str->utf8string_val = (char *)Mem_Alloc_Label(len, "uid2utf8")) == NULL)
return -1;
else
utf8str->utf8string_len = len;
return str2utf8(buff, utf8str);
} /* uid2utf8 */
int pnfs_ds_create_file(pnfs_client_t * pnfsclient,
pnfs_ds_loc_t * plocation, pnfs_ds_file_t * pfile)
{
component4 name;
char nameval[MAXNAMLEN];
char filename[MAXNAMLEN];
int rc;
unsigned int i = 0;
if(!pnfsclient || !pfile || !plocation)
return NFS4ERR_SERVERFAULT;
name.utf8string_val = nameval;
name.utf8string_len = 0;
snprintf(filename, MAXNAMLEN, "%s", plocation->str_mds_handle ) ;
if(str2utf8(filename, &name) == -1)
return NFS4ERR_SERVERFAULT;
for(i = 0; i < pnfsclient->nb_ds; i++)
{
if((rc = pnfs_create_ds_partfile(&(pnfsclient->ds_client[i]),
name, plocation, &(pfile->filepart[i]))) != NFS4_OK)
return rc;
} /* for */
strncpy ( pfile->location.str_mds_handle, plocation->str_mds_handle, MAXNAMLEN ) ;
pfile->allocated = TRUE;
pfile->stripe = pnfsclient->nb_ds;
return NFS4_OK;
} /* pnfs_ds_create_file */
/**
* nfs4_op_readdir: The NFS4_OP_READDIR.
*
* Implements the NFS4_OP_READDIR. If fh is a pseudo FH, then call is routed to routine nfs4_op_readdir_pseudo
*
* @param op [IN] pointer to nfs4_op arguments
* @param data [INOUT] Pointer to the compound request's data
* @param resp [IN] Pointer to nfs4_op results
*
* @return NFS4_OK if ok, any other value show an error.
*
*/
int nfs4_op_readdir(struct nfs_argop4 *op,
compound_data_t * data, struct nfs_resop4 *resp)
{
cache_entry_t *dir_pentry = NULL;
cache_entry_t *pentry = NULL;
cache_inode_endofdir_t eod_met;
fsal_attrib_list_t attrlookup;
cache_inode_status_t cache_status;
cache_inode_status_t cache_status_attr;
char __attribute__ ((__unused__)) funcname[] = "nfs4_op_readdir";
unsigned long dircount;
unsigned long maxcount;
entry4 *entry_nfs_array;
cache_inode_dir_entry_t **dirent_array = NULL;
verifier4 cookie_verifier;
uint64_t cookie = 0;
uint64_t end_cookie = 0;
fsal_handle_t *entry_FSALhandle;
nfs_fh4 entryFH;
char val_fh[NFS4_FHSIZE];
entry_name_array_item_t *entry_name_array = NULL;
unsigned int estimated_num_entries;
unsigned int num_entries;
int dir_pentry_unlock = FALSE;
unsigned int i = 0;
unsigned int outbuffsize = 0 ;
unsigned int entrysize = 0 ;
bitmap4 RdAttrErrorBitmap = { 1, (uint32_t *) "\0\0\0\b" }; /* 0xB = 11 = FATTR4_RDATTR_ERROR */
attrlist4 RdAttrErrorVals = { 0, NULL }; /* Nothing to be seen here */
resp->resop = NFS4_OP_READDIR;
res_READDIR4.status = NFS4_OK;
entryFH.nfs_fh4_len = 0;
entryFH.nfs_fh4_val = val_fh;
/* If there is no FH */
if(nfs4_Is_Fh_Empty(&(data->currentFH)))
{
res_READDIR4.status = NFS4ERR_NOFILEHANDLE;
return res_READDIR4.status;
}
/* If the filehandle is invalid */
if(nfs4_Is_Fh_Invalid(&(data->currentFH)))
{
res_READDIR4.status = NFS4ERR_BADHANDLE;
return res_READDIR4.status;
}
/* Tests if the Filehandle is expired (for volatile filehandle) */
if(nfs4_Is_Fh_Expired(&(data->currentFH)))
{
res_READDIR4.status = NFS4ERR_FHEXPIRED;
return res_READDIR4.status;
}
/* Pseudo Fs management */
if(nfs4_Is_Fh_Pseudo(&(data->currentFH)))
return nfs4_op_readdir_pseudo(op, data, resp);
/* Xattrs management */
if(nfs4_Is_Fh_Xattr(&(data->currentFH)))
return nfs4_op_readdir_xattr(op, data, resp);
/* You can readdir only within a directory */
dir_pentry = data->current_entry;
if(data->current_filetype != DIRECTORY)
{
res_READDIR4.status = NFS4ERR_NOTDIR;
return res_READDIR4.status;
}
/* get the characteristic value for readdir operation */
dircount = arg_READDIR4.dircount;
maxcount = arg_READDIR4.maxcount*0.9;
cookie = (unsigned int)arg_READDIR4.cookie;
/* dircount is considered meaningless by many nfsv4 client (like the CITI
* one). we use maxcount instead. */
/* the Linux 3.0, 3.1.0 clients vs. TCP Ganesha comes out 10x slower
* with 500 max entries */
#if 0
/* takes 2s to return 2999 entries */
estimated_num_entries = maxcount / sizeof(entry4);
#else
/* takes 20s to return 2999 entries */
estimated_num_entries = 50;
#endif
LogFullDebug(COMPONENT_NFS_V4,
"--- nfs4_op_readdir ---> dircount=%lu maxcount=%lu arg_cookie=%"
PRIu64" cookie=%"PRIu64" estimated_num_entries=%u",
dircount, maxcount, arg_READDIR4.cookie, cookie,
estimated_num_entries);
/* Do not use a cookie of 1 or 2 (reserved values) */
if(cookie == 1 || cookie == 2)
{
res_READDIR4.status = NFS4ERR_BAD_COOKIE;
return res_READDIR4.status;
}
/* Get only attributes that are allowed to be read */
if(!nfs4_Fattr_Check_Access_Bitmap(&arg_READDIR4.attr_request,
FATTR4_ATTR_READ))
{
res_READDIR4.status = NFS4ERR_INVAL;
return res_READDIR4.status;
}
/* If maxcount is too short, return NFS4ERR_TOOSMALL */
if(maxcount < sizeof(entry4) || estimated_num_entries == 0)
{
res_READDIR4.status = NFS4ERR_TOOSMALL;
return res_READDIR4.status;
}
/*
* If cookie verifier is used, then an non-trivial value is
* returned to the client This value is the mtime of
* the pentry. If verifier is unused (as in many NFS
* Servers) then only a set of zeros is returned (trivial
* value)
*/
memset(cookie_verifier, 0, NFS4_VERIFIER_SIZE);
if(data->pexport->UseCookieVerifier == 1)
memcpy(cookie_verifier, &dir_pentry->internal_md.mod_time, sizeof(time_t));
/* Cookie delivered by the server and used by the client SHOULD not ne 0, 1 or 2 (cf RFC3530, page192)
* because theses value are reserved for special use.
* 0 - cookie for first READDIR
* 1 - reserved for . on client handside
* 2 - reserved for .. on client handside
* Entries '.' and '..' are not returned also
* For these reason, there will be an offset of 3 between NFS4 cookie and
* HPSS cookie */
if((cookie != 0) && (data->pexport->UseCookieVerifier == 1))
{
if(memcmp(cookie_verifier, arg_READDIR4.cookieverf, NFS4_VERIFIER_SIZE) != 0)
{
res_READDIR4.status = NFS4ERR_BAD_COOKIE;
return res_READDIR4.status;
}
}
/* The default behaviour is to consider that eof is not reached, the
* returned values by cache_inode_readdir will let us know if eod was
* reached or not */
res_READDIR4.READDIR4res_u.resok4.reply.eof = FALSE;
/* Get prepared for readdir */
if((dirent_array =
(cache_inode_dir_entry_t **) Mem_Alloc(
estimated_num_entries * sizeof(cache_inode_dir_entry_t*))) == NULL)
{
res_READDIR4.status = NFS4ERR_SERVERFAULT;
goto out;
}
/* Perform the readdir operation */
if(cache_inode_readdir(dir_pentry,
data->pexport->cache_inode_policy,
cookie,
estimated_num_entries,
&num_entries,
&end_cookie,
&eod_met,
dirent_array,
data->ht,
&dir_pentry_unlock,
data->pclient,
data->pcontext, &cache_status) != CACHE_INODE_SUCCESS)
{
res_READDIR4.status = nfs4_Errno(cache_status);
goto out;
}
/* For an empty directory, we will find only . and .., so reply as if the
* end is reached */
if(num_entries == 0)
{
/* only . and .. */
res_READDIR4.READDIR4res_u.resok4.reply.entries = NULL;
res_READDIR4.READDIR4res_u.resok4.reply.eof = TRUE;
memcpy(res_READDIR4.READDIR4res_u.resok4.cookieverf, cookie_verifier,
NFS4_VERIFIER_SIZE);
}
else
{
/* Start computing the outbuffsize */
outbuffsize = sizeof( bool_t) /* eof */
+ sizeof( nfsstat4 ) /* READDIR4res::status */
+ NFS4_VERIFIER_SIZE /* cookie verifier */ ;
/* Allocation of reply structures */
if((entry_name_array =
(entry_name_array_item_t *) Mem_Alloc(num_entries *
(FSAL_MAX_NAME_LEN + 1)))
== NULL)
{
LogError(COMPONENT_NFS_V4, ERR_SYS, ERR_MALLOC, errno);
res_READDIR4.status = NFS4ERR_SERVERFAULT;
return res_READDIR4.status;
}
memset((char *)entry_name_array, 0,
num_entries * (FSAL_MAX_NAME_LEN + 1));
if((entry_nfs_array = (entry4 *) Mem_Alloc(num_entries * sizeof(entry4)))
== NULL)
{
LogError(COMPONENT_NFS_V4, ERR_SYS, ERR_MALLOC, errno);
res_READDIR4.status = NFS4ERR_SERVERFAULT;
return res_READDIR4.status;
}
memset((char *)entry_nfs_array, 0, num_entries * sizeof(entry4));
for(i = 0; i < num_entries; i++)
{
entry_nfs_array[i].name.utf8string_val = entry_name_array[i];
if(str2utf8(dirent_array[i]->name.name,
&entry_nfs_array[i].name) == -1)
{
res_READDIR4.status = NFS4ERR_SERVERFAULT;
goto out;
}
/* Set the cookie value */
entry_nfs_array[i].cookie = dirent_array[i]->cookie;
/* Get the pentry for the object's attributes and filehandle */
if( ( pentry = cache_inode_lookup_no_mutex( dir_pentry,
&dirent_array[i]->name,
data->pexport->cache_inode_policy,
&attrlookup,
data->ht,
data->pclient,
data->pcontext,
&cache_status ) ) == NULL )
{
Mem_Free((char *)entry_nfs_array);
/* Return the fattr4_rdattr_error , cf RFC3530, page 192 */
entry_nfs_array[i].attrs.attrmask = RdAttrErrorBitmap;
entry_nfs_array[i].attrs.attr_vals = RdAttrErrorVals;
res_READDIR4.status = NFS4ERR_SERVERFAULT;
goto out;
}
/* If file handle is asked in the attributes, provide it */
if(arg_READDIR4.attr_request.bitmap4_val != NULL
&& (arg_READDIR4.attr_request.bitmap4_val[0] & FATTR4_FILEHANDLE))
{
if((entry_FSALhandle =
cache_inode_get_fsal_handle(pentry,
&cache_status_attr)) == NULL)
{
/* Faulty Handle or pentry */
Mem_Free((char *)entry_nfs_array);
res_READDIR4.status = NFS4ERR_SERVERFAULT;
goto out;
}
if(!nfs4_FSALToFhandle(&entryFH, entry_FSALhandle, data))
{
/* Faulty type */
Mem_Free((char *)entry_nfs_array);
res_READDIR4.status = NFS4ERR_SERVERFAULT;
goto out;
}
}
if(nfs4_FSALattr_To_Fattr(data->pexport,
&attrlookup,
&(entry_nfs_array[i].attrs),
data, &entryFH, &(arg_READDIR4.attr_request)) != 0)
{
/* Return the fattr4_rdattr_error , cf RFC3530, page 192 */
entry_nfs_array[i].attrs.attrmask = RdAttrErrorBitmap;
entry_nfs_array[i].attrs.attr_vals = RdAttrErrorVals;
}
/* Update the size of the output buffer */
entrysize = sizeof( nfs_cookie4 ) ; /* nfs_cookie4 */
entrysize += sizeof( u_int ) ; /* pathname4::utf8strings_len */
entrysize += entry_nfs_array[i].name.utf8string_len ;
entrysize += sizeof( u_int ) ; /* bitmap4_len */
entrysize += entry_nfs_array[i].attrs.attrmask.bitmap4_len ;
entrysize += sizeof( u_int ) ; /* attrlist4_len */
entrysize += entry_nfs_array[i].attrs.attr_vals.attrlist4_len ;
entrysize += sizeof( caddr_t ) ;
outbuffsize += entrysize;
LogFullDebug(COMPONENT_NFS_V4,
" === nfs4_op_readdir ===> i=%u name=%s cookie=%"PRIu64" "
"entrysize=%u buffsize=%u",
i, dirent_array[i]->name.name,
entry_nfs_array[i].cookie,
entrysize,
outbuffsize);
/* Chain the entries together */
entry_nfs_array[i].nextentry = NULL;
if(i != 0)
{
if( outbuffsize < maxcount )
entry_nfs_array[i - 1].nextentry = &(entry_nfs_array[i]);
else
{
LogFullDebug(COMPONENT_NFS_V4,
"=== nfs4_op_readdir ===> "
"maxcount reached at %u entries name=%s "
"cookie=%llu "
"buffsize=%u (return early)",
i+1,
dirent_array[i]->name.name,
(unsigned long long)entry_nfs_array[i].cookie,
outbuffsize);
entry_nfs_array[i - 1].nextentry = NULL ;
break ;
}
}
} /* for i */
if((i == num_entries) && (eod_met == END_OF_DIR))
{
LogFullDebug(COMPONENT_NFS_V4,
"End of directory reached: num_entries=%d i=%d",
num_entries,
i);
/* This is the end of the directory */
res_READDIR4.READDIR4res_u.resok4.reply.eof = TRUE;
memcpy(res_READDIR4.READDIR4res_u.resok4.cookieverf,
cookie_verifier, NFS4_VERIFIER_SIZE);
}
/* Put the entry's list in the READDIR reply */
res_READDIR4.READDIR4res_u.resok4.reply.entries = entry_nfs_array;
}
/* Do not forget to set the verifier */
memcpy((char *)res_READDIR4.READDIR4res_u.resok4.cookieverf, cookie_verifier,
NFS4_VERIFIER_SIZE);
res_READDIR4.status = NFS4_OK;
out:
/* release read lock on dir_pentry, if requested */
if (dir_pentry_unlock)
V_r(&dir_pentry->lock);
if (dirent_array)
{
if( !CACHE_INODE_KEEP_CONTENT( dir_pentry->policy ) )
cache_inode_release_dirent( dirent_array, num_entries, data->pclient ) ;
Mem_Free((char *)dirent_array);
}
return res_READDIR4.status;
} /* nfs4_op_readdir */
int nfs4_op_readlink(struct nfs_argop4 *op,
compound_data_t * data, struct nfs_resop4 *resp)
{
cache_inode_status_t cache_status;
fsal_path_t symlink_path;
char __attribute__ ((__unused__)) funcname[] = "nfs4_op_readlink";
resp->resop = NFS4_OP_READLINK;
res_READLINK4.status = NFS4_OK;
/* If there is no FH */
if(nfs4_Is_Fh_Empty(&(data->currentFH)))
{
res_READLINK4.status = NFS4ERR_NOFILEHANDLE;
return NFS4ERR_NOFILEHANDLE;
}
/* If the filehandle is invalid */
if(nfs4_Is_Fh_Invalid(&(data->currentFH)))
{
res_READLINK4.status = NFS4ERR_BADHANDLE;
return NFS4ERR_BADHANDLE;
}
/* Tests if the Filehandle is expired (for volatile filehandle) */
if(nfs4_Is_Fh_Expired(&(data->currentFH)))
{
res_READLINK4.status = NFS4ERR_FHEXPIRED;
return NFS4ERR_FHEXPIRED;
}
/* You can readlink only on a link ... */
if(data->current_filetype != SYMBOLIC_LINK)
{
/* As said on page 194 of RFC3530, return NFS4ERR_INVAL in this case */
res_READLINK4.status = NFS4ERR_INVAL;
return res_READLINK4.status;
}
/* Using cache_inode_readlink */
if(cache_inode_readlink(data->current_entry,
&symlink_path,
data->ht,
data->pclient,
data->pcontext, &cache_status) == CACHE_INODE_SUCCESS)
{
/* Alloc read link */
if((res_READLINK4.READLINK4res_u.resok4.link.utf8string_val =
(char *)Mem_Alloc_Label(symlink_path.len, "nfs4_op_readlink")) == NULL)
{
res_READLINK4.status = NFS4ERR_INVAL;
return res_READLINK4.status;
}
/* convert the fsal path to a utf8 string */
if(str2utf8((char *)symlink_path.path, &res_READLINK4.READLINK4res_u.resok4.link)
== -1)
{
res_READLINK4.status = NFS4ERR_INVAL;
return res_READLINK4.status;
}
res_READLINK4.status = NFS4_OK;
return res_READLINK4.status;
}
res_READLINK4.status = nfs4_Errno(cache_status);
return res_READLINK4.status;
} /* nfs4_op_readlink */
/**
* nfs4_op_readdir: The NFS4_OP_READDIR.
*
* Implements the NFS4_OP_READDIR. If fh is a pseudo FH, then call is routed to routine nfs4_op_readdir_pseudo
*
* @param op [IN] pointer to nfs4_op arguments
* @param data [INOUT] Pointer to the compound request's data
* @param resp [IN] Pointer to nfs4_op results
*
* @return NFS4_OK if ok, any other value show an error.
*
*/
int nfs4_op_readdir(struct nfs_argop4 *op,
compound_data_t * data, struct nfs_resop4 *resp)
{
cache_entry_t *dir_pentry = NULL;
cache_entry_t *pentry = NULL;
cache_inode_endofdir_t eod_met;
fsal_attrib_list_t attrlookup;
cache_inode_status_t cache_status;
cache_inode_status_t cache_status_attr;
char __attribute__ ((__unused__)) funcname[] = "nfs4_op_readdir";
unsigned long dircount;
unsigned long maxcount;
entry4 *entry_nfs_array;
cache_inode_dir_entry_t *dirent_array;
verifier4 cookie_verifier;
unsigned int cookie = 0;
unsigned int end_cookie = 0;
unsigned int *cookie_array;
fsal_handle_t *entry_FSALhandle;
nfs_fh4 entryFH;
char val_fh[NFS4_FHSIZE];
entry_name_array_item_t *entry_name_array;
unsigned long space_used;
unsigned int estimated_num_entries;
unsigned int num_entries;
unsigned int i = 0;
bitmap4 RdAttrErrorBitmap;
attrlist4 RdAttrErrorVals;
resp->resop = NFS4_OP_READDIR;
res_READDIR4.status = NFS4_OK;
entryFH.nfs_fh4_len = 0;
entryFH.nfs_fh4_val = val_fh;
/* If there is no FH */
if(nfs4_Is_Fh_Empty(&(data->currentFH)))
{
res_READDIR4.status = NFS4ERR_NOFILEHANDLE;
return res_READDIR4.status;
}
/* If the filehandle is invalid */
if(nfs4_Is_Fh_Invalid(&(data->currentFH)))
{
res_READDIR4.status = NFS4ERR_BADHANDLE;
return res_READDIR4.status;
}
/* Tests if the Filehandle is expired (for volatile filehandle) */
if(nfs4_Is_Fh_Expired(&(data->currentFH)))
{
res_READDIR4.status = NFS4ERR_FHEXPIRED;
return res_READDIR4.status;
}
/* Pseudo Fs management */
if(nfs4_Is_Fh_Pseudo(&(data->currentFH)))
return nfs4_op_readdir_pseudo(op, data, resp);
/* Xattrs management */
if(nfs4_Is_Fh_Xattr(&(data->currentFH)))
return nfs4_op_readdir_xattr(op, data, resp);
/* You can readdir only within a directory */
dir_pentry = data->current_entry;
if(data->current_filetype != DIR_BEGINNING && data->current_filetype != DIR_CONTINUE)
{
res_READDIR4.status = NFS4ERR_NOTDIR;
return res_READDIR4.status;
}
/* get the caracteristic value for readdir operation */
dircount = arg_READDIR4.dircount;
maxcount = arg_READDIR4.maxcount;
cookie = (unsigned int)arg_READDIR4.cookie;
space_used = sizeof(entry4);
/* dircount is considered meaningless by many nfsv4 client (like the CITI one). we use maxcount instead */
estimated_num_entries = maxcount / sizeof(entry4); /* Estimated_num_entries is probably far too big */
LogFullDebug(COMPONENT_NFS_V4,
"--- nfs4_op_readdir ---> dircount=%u maxcount=%u arg_cookie=%llu cookie=%d estimated_num_entries=%u\n",
dircount, maxcount, arg_READDIR4.cookie, cookie, estimated_num_entries);
/* Do not use a cookie of 1 or 2 (reserved values) */
if(cookie == 1 || cookie == 2)
{
res_READDIR4.status = NFS4ERR_BAD_COOKIE;
return res_READDIR4.status;
}
if(cookie != 0)
cookie = cookie - 2; /* 0,1 and 2 are reserved, there is a delta of '3' because of this */
/* Get only attributes that are allowed to be read */
if(!nfs4_Fattr_Check_Access_Bitmap(&arg_READDIR4.attr_request, FATTR4_ATTR_READ))
{
res_READDIR4.status = NFS4ERR_INVAL;
return res_READDIR4.status;
}
/* If maxcount is too short, return NFS4ERR_TOOSMALL */
if(maxcount < sizeof(entry4) || estimated_num_entries == 0)
{
res_READDIR4.status = NFS4ERR_TOOSMALL;
return res_READDIR4.status;
}
/*
* If cookie verifier is used, then an non-trivial value is
* returned to the client This value is the mtime of
* the pentry. If verifier is unused (as in many NFS
* Servers) then only a set of zeros is returned (trivial
* value)
*/
memset(cookie_verifier, 0, NFS4_VERIFIER_SIZE);
if(data->pexport->UseCookieVerifier == 1)
memcpy(cookie_verifier, &dir_pentry->internal_md.mod_time, sizeof(time_t));
/* Cookie delivered by the server and used by the client SHOULD not ne 0, 1 or 2 (cf RFC3530, page192)
* because theses value are reserved for special use.
* 0 - cookie for first READDIR
* 1 - reserved for . on client handside
* 2 - reserved for .. on client handside
* Entries '.' and '..' are not returned also
* For these reason, there will be an offset of 3 between NFS4 cookie and HPSS cookie */
if((cookie != 0) && (data->pexport->UseCookieVerifier == 1))
{
if(memcmp(cookie_verifier, arg_READDIR4.cookieverf, NFS4_VERIFIER_SIZE) != 0)
{
res_READDIR4.status = NFS4ERR_BAD_COOKIE;
return res_READDIR4.status;
}
}
/* The default behaviour is to consider that eof is not reached, the returned values by cache_inode_readdir
* will let us know if eod was reached or not */
res_READDIR4.READDIR4res_u.resok4.reply.eof = FALSE;
/* Get prepared for readdir */
if((dirent_array =
(cache_inode_dir_entry_t *) Mem_Alloc(estimated_num_entries *
sizeof(cache_inode_dir_entry_t))) == NULL)
{
res_READDIR4.status = NFS4ERR_SERVERFAULT;
return res_READDIR4.status;
}
if((cookie_array =
(unsigned int *)Mem_Alloc(estimated_num_entries * sizeof(unsigned int))) == NULL)
{
Mem_Free((char *)dirent_array);
res_READDIR4.status = NFS4ERR_SERVERFAULT;
return res_READDIR4.status;
}
/* Perform the readdir operation */
if(cache_inode_readdir(dir_pentry,
cookie,
estimated_num_entries,
&num_entries,
&end_cookie,
&eod_met,
dirent_array,
cookie_array,
data->ht,
data->pclient,
data->pcontext, &cache_status) != CACHE_INODE_SUCCESS)
{
res_READDIR4.status = nfs4_Errno(cache_status);
return res_READDIR4.status;
}
/* For an empty directory, we will find only . and .., so reply af if the end if reached */
if(num_entries == 0)
{
/* only . and .. */
res_READDIR4.READDIR4res_u.resok4.reply.entries = NULL;
res_READDIR4.READDIR4res_u.resok4.reply.eof = TRUE;
memcpy(res_READDIR4.READDIR4res_u.resok4.cookieverf, cookie_verifier,
NFS4_VERIFIER_SIZE);
}
else
{
/* Allocation of reply structures */
if((entry_name_array =
(entry_name_array_item_t *) Mem_Alloc(num_entries *
(FSAL_MAX_NAME_LEN + 1))) == NULL)
{
LogError(COMPONENT_NFS_V4, ERR_SYS, ERR_MALLOC, errno);
res_READDIR4.status = NFS4ERR_SERVERFAULT;
return res_READDIR4.status;
}
memset((char *)entry_name_array, 0, num_entries * (FSAL_MAX_NAME_LEN + 1));
if((entry_nfs_array = (entry4 *) Mem_Alloc(num_entries * sizeof(entry4))) == NULL)
{
LogError(COMPONENT_NFS_V4, ERR_SYS, ERR_MALLOC, errno);
res_READDIR4.status = NFS4ERR_SERVERFAULT;
return res_READDIR4.status;
}
for(i = 0; i < num_entries; i++)
{
entry_nfs_array[i].name.utf8string_val = entry_name_array[i];
if(str2utf8(dirent_array[i].name.name, &entry_nfs_array[i].name) == -1)
{
res_READDIR4.status = NFS4ERR_SERVERFAULT;
return res_READDIR4.status;
}
/* Set the cookie value */
if(i != num_entries - 1)
entry_nfs_array[i].cookie = cookie_array[i + 1] + 2; /* 0, 1 and 2 are reserved */
else
entry_nfs_array[i].cookie = end_cookie + 2;
LogFullDebug(COMPONENT_NFS_V4, " === nfs4_op_readdir ===> i=%d name=%s cookie=%llu\n",
i, dirent_array[i].name.name, entry_nfs_array[i].cookie);
/* Get the pentry for the object's attributes and filehandle */
if((pentry = cache_inode_lookup(dir_pentry,
&dirent_array[i].name,
&attrlookup,
data->ht,
data->pclient,
data->pcontext, &cache_status)) == NULL)
{
Mem_Free((char *)entry_nfs_array);
Mem_Free((char *)dirent_array);
Mem_Free((char *)cookie_array);
/* Return the fattr4_rdattr_error , cf RFC3530, page 192 */
entry_nfs_array[i].attrs.attrmask = RdAttrErrorBitmap;
entry_nfs_array[i].attrs.attr_vals = RdAttrErrorVals;
res_READDIR4.status = NFS4ERR_SERVERFAULT;
return res_READDIR4.status;
}
/* If file handle is asked in the attributes, provide it */
if(arg_READDIR4.attr_request.bitmap4_val != NULL
&& (arg_READDIR4.attr_request.bitmap4_val[0] & FATTR4_FILEHANDLE))
{
if((entry_FSALhandle =
cache_inode_get_fsal_handle(pentry, &cache_status_attr)) == NULL)
{
/* Faulty Handle or pentry */
Mem_Free((char *)entry_nfs_array);
Mem_Free((char *)dirent_array);
Mem_Free((char *)cookie_array);
res_READDIR4.status = NFS4ERR_SERVERFAULT;
return res_READDIR4.status;
}
if(!nfs4_FSALToFhandle(&entryFH, entry_FSALhandle, data))
{
/* Faulty type */
Mem_Free((char *)entry_nfs_array);
Mem_Free((char *)dirent_array);
Mem_Free((char *)cookie_array);
res_READDIR4.status = NFS4ERR_SERVERFAULT;
return res_READDIR4.status;
}
}
if(nfs4_FSALattr_To_Fattr(data->pexport,
&attrlookup,
&(entry_nfs_array[i].attrs),
data, &entryFH, &(arg_READDIR4.attr_request)) != 0)
{
/* Return the fattr4_rdattr_error , cf RFC3530, page 192 */
entry_nfs_array[i].attrs.attrmask = RdAttrErrorBitmap;
entry_nfs_array[i].attrs.attr_vals = RdAttrErrorVals;
}
/* Chain the entries together */
entry_nfs_array[i].nextentry = NULL;
if(i != 0)
entry_nfs_array[i - 1].nextentry = &(entry_nfs_array[i]);
/* This test is there to avoid going further than the buffer provided by the client
* the factor "9/10" is there for safety. Its value could be change as beta tests will be done */
if((caddr_t)
((caddr_t) (&entry_nfs_array[i]) - (caddr_t) (&entry_nfs_array[0])) >
(caddr_t) (maxcount * 9 / 10))
break;
} /* for i */
if((eod_met == END_OF_DIR) && (i == num_entries))
{
/* This is the end of the directory */
res_READDIR4.READDIR4res_u.resok4.reply.eof = TRUE;
memcpy(res_READDIR4.READDIR4res_u.resok4.cookieverf, cookie_verifier,
NFS4_VERIFIER_SIZE);
}
/* Put the entry's list in the READDIR reply */
res_READDIR4.READDIR4res_u.resok4.reply.entries = entry_nfs_array;
}
/* Do not forget to set the verifier */
memcpy((char *)res_READDIR4.READDIR4res_u.resok4.cookieverf, cookie_verifier,
NFS4_VERIFIER_SIZE);
Mem_Free((char *)dirent_array);
Mem_Free((char *)cookie_array);
res_READDIR4.status = NFS4_OK;
return res_READDIR4.status;
} /* nfs4_op_readdir */
/**
*
* pnfs_lookup: looks up for a path's component.
*
* Looks up for a path's component.
*
* @param pnfsclient [IN] pointer to the pnfsclient structure (client to the ds).
* @param parent_directory_handle [IN] the NFSv4 file handle for the parent directory
* @param filename [IN] the path's component to be looked up
* @param object_handle [OUT] the resulting NFSv4 file handle
*
* @return NFS4_OK if successful
* @return a NFSv4 error (positive value) if failed.
*
*/
int pnfs_lookup(pnfs_ds_client_t * pnfsdsclient, nfs_fh4 * parent_directory_handle, /* IN */
char *filename, /* IN */
nfs_fh4 * object_handle)
{
int rc;
nfs_fh4 nfs4fh;
component4 name;
char nameval[MAXNAMLEN];
unsigned int index_getfh = 0;
COMPOUND4args argnfs4;
COMPOUND4res resnfs4;
struct timeval timeout = { 25, 0 };
#define PNFS_LAYOUTFILE_NB_OP_ALLOC 4
nfs_argop4 argoparray[PNFS_LAYOUTFILE_NB_OP_ALLOC];
nfs_resop4 resoparray[PNFS_LAYOUTFILE_NB_OP_ALLOC];
uint32_t bitmap_res[2];
char padfilehandle[PNFS_LAYOUTFILE_FILEHANDLE_MAX_LEN];
/* sanity checks
* note : object_attributes is optionnal
* parent_directory_handle may be null for getting FS root.
*/
if(!object_handle || !filename || !object_handle)
return NFS4ERR_INVAL;
/* Setup results structures */
argnfs4.argarray.argarray_val = argoparray;
resnfs4.resarray.resarray_val = resoparray;
argnfs4.minorversion = 1;
argnfs4.argarray.argarray_len = 0;
name.utf8string_val = nameval;
name.utf8string_len = 0;
if(!parent_directory_handle)
{
/* argnfs4.tag.utf8string_val = "GANESHA NFSv4 Proxy: Lookup Root" ; */
argnfs4.tag.utf8string_val = NULL;
argnfs4.tag.utf8string_len = 0;
#define PNFS_LOOKUP_IDX_OP_SEQUENCE 0
#define PNFS_LOOKUP_IDX_OP_PUTROOTFH 1
#define PNFS_LOOKUP_IDX_OP_GETFH_ROOT 2
COMPOUNDV41_ARG_ADD_OP_SEQUENCE(argnfs4, pnfsdsclient->session,
pnfsdsclient->sequence);
COMPOUNDV41_ARG_ADD_OP_PUTROOTFH(argnfs4);
COMPOUNDV41_ARG_ADD_OP_GETFH(argnfs4);
index_getfh = PNFS_LOOKUP_IDX_OP_GETFH_ROOT;
resnfs4.resarray.resarray_val[PNFS_LOOKUP_IDX_OP_GETFH_ROOT].nfs_resop4_u.opgetfh.
GETFH4res_u.resok4.object.nfs_fh4_val = (char *)padfilehandle;
resnfs4.resarray.resarray_val[PNFS_LOOKUP_IDX_OP_GETFH_ROOT].nfs_resop4_u.opgetfh.
GETFH4res_u.resok4.object.nfs_fh4_len = PNFS_LAYOUTFILE_FILEHANDLE_MAX_LEN;
}
else /* this is a real lookup(parent, name) */
{
/* the filename should not be null */
if(filename == NULL)
return NFS4ERR_INVAL;
if(str2utf8(filename, &name) == -1)
return NFS4ERR_SERVERFAULT;
nfs4fh.nfs_fh4_len = parent_directory_handle->nfs_fh4_len;
nfs4fh.nfs_fh4_val = parent_directory_handle->nfs_fh4_val;
/* argnfs4.tag.utf8string_val = "GANESHA NFSv4 Proxy: Lookup name" ; */
argnfs4.tag.utf8string_val = NULL;
argnfs4.tag.utf8string_len = 0;
#define PNFS_LOOKUP_IDX_OP_SEQUENCE 0
#define PNFS_LOOKUP_IDX_OP_PUTFH 1
#define PNFS_LOOKUP_IDX_OP_LOOKUP 2
#define PNFS_LOOKUP_IDX_OP_GETFH 3
COMPOUNDV41_ARG_ADD_OP_SEQUENCE(argnfs4, pnfsdsclient->session,
pnfsdsclient->sequence);
COMPOUNDV41_ARG_ADD_OP_PUTFH(argnfs4, nfs4fh);
COMPOUNDV41_ARG_ADD_OP_LOOKUP(argnfs4, name);
COMPOUNDV41_ARG_ADD_OP_GETFH(argnfs4);
index_getfh = PNFS_LOOKUP_IDX_OP_GETFH;
resnfs4.resarray.resarray_val[PNFS_LOOKUP_IDX_OP_GETFH].nfs_resop4_u.opgetfh.
GETFH4res_u.resok4.object.nfs_fh4_val = (char *)padfilehandle;
resnfs4.resarray.resarray_val[PNFS_LOOKUP_IDX_OP_GETFH].nfs_resop4_u.opgetfh.
GETFH4res_u.resok4.object.nfs_fh4_len = PNFS_LAYOUTFILE_FILEHANDLE_MAX_LEN;
}
/* Call the NFSv4 function */
if(clnt_call(pnfsdsclient->rpc_client, NFSPROC4_COMPOUND,
(xdrproc_t) xdr_COMPOUND4args, (caddr_t) & argnfs4,
(xdrproc_t) xdr_COMPOUND4res, (caddr_t) & resnfs4, timeout) != RPC_SUCCESS)
{
return NFS4ERR_IO; /* @todo: For wanting of something more appropriate */
}
/* Increment the sequence */
pnfsdsclient->sequence += 1;
if(resnfs4.status != NFS4_OK)
{
return resnfs4.status;
}
object_handle->nfs_fh4_len =
resnfs4.resarray.resarray_val[index_getfh].nfs_resop4_u.opgetfh.GETFH4res_u.resok4.
object.nfs_fh4_len;
memcpy((char *)object_handle->nfs_fh4_val,
(char *)resnfs4.resarray.resarray_val[index_getfh].nfs_resop4_u.opgetfh.
GETFH4res_u.resok4.object.nfs_fh4_val,
resnfs4.resarray.resarray_val[index_getfh].nfs_resop4_u.opgetfh.GETFH4res_u.
resok4.object.nfs_fh4_len);
/* lookup complete ! */
return NFS4_OK;
}