void rtems_filesystem_eval_path_recursive(
rtems_filesystem_eval_path_context_t *ctx,
const char *path,
size_t pathlen
)
{
if (pathlen > 0) {
if (ctx->recursionlevel < RTEMS_FILESYSTEM_SYMLOOP_MAX) {
const char *saved_path = ctx->path;
size_t saved_pathlen = ctx->pathlen;
if (rtems_filesystem_is_delimiter(path [0])) {
rtems_filesystem_eval_path_restart(ctx, &ctx->rootloc);
}
ctx->path = path;
ctx->pathlen = pathlen;
++ctx->recursionlevel;
while (ctx->pathlen > 0) {
(*ctx->currentloc.mt_entry->ops->eval_path_h)(ctx);
}
--ctx->recursionlevel;
ctx->path = saved_path;
ctx->pathlen = saved_pathlen;
} else {
rtems_filesystem_eval_path_error(ctx, ELOOP);
}
} else {
rtems_filesystem_eval_path_error(ctx, ENOENT);
}
}
static rtems_filesystem_eval_path_generic_status IMFS_eval_token(
rtems_filesystem_eval_path_context_t *ctx,
void *arg,
const char *token,
size_t tokenlen
)
{
rtems_filesystem_eval_path_generic_status status =
RTEMS_FILESYSTEM_EVAL_PATH_GENERIC_DONE;
rtems_filesystem_location_info_t *currentloc =
rtems_filesystem_eval_path_get_currentloc( ctx );
IMFS_jnode_t *dir = currentloc->node_access;
bool access_ok = rtems_filesystem_eval_path_check_access(
ctx,
RTEMS_FS_PERMS_EXEC,
dir->st_mode,
dir->st_uid,
dir->st_gid
);
if ( access_ok ) {
IMFS_jnode_t *entry = IMFS_search_in_directory( dir, token, tokenlen );
if ( entry != NULL ) {
bool terminal = !rtems_filesystem_eval_path_has_path( ctx );
int eval_flags = rtems_filesystem_eval_path_get_flags( ctx );
bool follow_hard_link = (eval_flags & RTEMS_FS_FOLLOW_HARD_LINK) != 0;
bool follow_sym_link = (eval_flags & RTEMS_FS_FOLLOW_SYM_LINK) != 0;
IMFS_jnode_types_t type = IMFS_type( entry );
rtems_filesystem_eval_path_clear_token( ctx );
if ( type == IMFS_HARD_LINK && (follow_hard_link || !terminal)) {
entry = entry->info.hard_link.link_node;
}
if ( type == IMFS_SYM_LINK && (follow_sym_link || !terminal)) {
const char *target = entry->info.sym_link.name;
rtems_filesystem_eval_path_recursive( ctx, target, strlen( target ) );
} else {
rtems_filesystem_global_location_t **fs_root_ptr =
IMFS_is_mount_point( entry, type );
if ( fs_root_ptr == NULL ) {
--dir->reference_count;
++entry->reference_count;
currentloc->node_access = entry;
currentloc->node_access_2 =
IMFS_generic_get_context_by_node( entry );
IMFS_Set_handlers( currentloc );
if ( !terminal ) {
status = RTEMS_FILESYSTEM_EVAL_PATH_GENERIC_CONTINUE;
}
} else {
access_ok = rtems_filesystem_eval_path_check_access(
ctx,
RTEMS_FS_PERMS_EXEC,
entry->st_mode,
entry->st_uid,
entry->st_gid
);
if ( access_ok ) {
rtems_filesystem_eval_path_restart( ctx, fs_root_ptr );
}
}
}
} else {
status = RTEMS_FILESYSTEM_EVAL_PATH_GENERIC_NO_ENTRY;
}
}
return status;
}
