/**
* Initialize permanently existing procfs files.
*/
static int init_permanent_files(void)
{
struct procfs_file ** file;
procfs_read_funcs = kcalloc(SET_COUNT(procfs_files),
sizeof(procfs_readfn_t *));
procfs_write_funcs = kcalloc(SET_COUNT(procfs_files),
sizeof(procfs_writefn_t *));
procfs_rele_funcs = kcalloc(SET_COUNT(procfs_files),
sizeof(procfs_relefn_t *));
if (!(procfs_read_funcs && procfs_write_funcs && procfs_rele_funcs))
return -ENOMEM;
SET_FOREACH(file, procfs_files) {
enum procfs_filetype filetype = (*file)->filetype;
procfs_read_funcs[filetype] = (*file)->readfn;
procfs_write_funcs[filetype] = (*file)->writefn;
procfs_rele_funcs[filetype] = (*file)->relefn;
if (filetype > PROCFS_KERNEL_SEPARATOR) {
const char * filename = (*file)->filename;
create_proc_file(vn_procfs, 0, filename, filetype);
}
}
return 0;
}
int procfs_mkentry(const struct proc_info * proc)
{
char name[PROCFS_NAMELEN_MAX];
vnode_t * pdir = NULL;
struct procfs_file ** file;
int err;
if (!vn_procfs)
return 0; /* Not yet initialized. */
uitoa32(name, proc->pid);
KERROR_DBG("%s(pid = %s)\n", __func__, name);
err = vn_procfs->vnode_ops->mkdir(vn_procfs, name, PROCFS_PERMS);
if (err == -EEXIST) {
return 0;
} else if (err) {
goto fail;
}
err = vn_procfs->vnode_ops->lookup(vn_procfs, name, &pdir);
if (err) {
pdir = NULL;
goto fail;
}
SET_FOREACH(file, procfs_files) {
const enum procfs_filetype filetype = (*file)->filetype;
if (filetype < PROCFS_KERNEL_SEPARATOR) {
const char * filename = (*file)->filename;
err = create_proc_file(pdir, proc->pid, filename, filetype);
if (err)
goto fail;
}
}
fail:
if (pdir)
vrele(pdir);
if (err)
KERROR_DBG("Failed to create a procfs entry\n");
return err;
}
void create_proc_registry(void) {
create_proc_file();
}
