void procfs_rmentry(pid_t pid)
{
vnode_t * pdir;
char name[PROCFS_NAMELEN_MAX];
struct procfs_file ** file;
if (!vn_procfs)
return; /* Not yet initialized. */
uitoa32(name, pid);
KERROR_DBG("%s(pid = %s)\n", __func__, name);
vref(vn_procfs);
if (vn_procfs->vnode_ops->lookup(vn_procfs, name, &pdir)) {
KERROR_DBG("pid dir doesn't exist\n");
goto out;
}
SET_FOREACH(file, procfs_files) {
if ((*file)->filetype < PROCFS_KERNEL_SEPARATOR) {
pdir->vnode_ops->unlink(pdir, (*file)->filename);
}
}
vrele(pdir);
if (vn_procfs->vnode_ops->rmdir(vn_procfs, name)) {
KERROR_DBG("Can't rmdir(%s)\n", name);
}
out:
vrele(vn_procfs);
}
static int toggle_dbgmsg(char * cfg)
{
struct _kerror_dyndebug_msg * msg_opt = &__start_set_debug_msg_sect;
struct _kerror_dyndebug_msg * stop = &__stop_set_debug_msg_sect;
char strbuf[DD_MAX_LINE];
char * file = strbuf;
char * line;
if (msg_opt == stop)
return -EINVAL;
if (cfg[0] == '*') { /* Match all */
file = NULL;
line = NULL;
} else { /* Match specfic file */
strlcpy(strbuf, cfg, sizeof(strbuf));
file = strbuf;
line = kstrchr(strbuf, ':');
if (line) { /* Match line number */
line[0] = '\0';
line++;
}
}
while (msg_opt < stop) {
if (file) {
if (strcmp(file, msg_opt->file) != 0)
goto next;
if (line && *line != '\0') {
char msgline[12];
uitoa32(msgline, msg_opt->line);
if (strcmp(line, msgline) != 0)
goto next;
}
}
/* Toggle */
msg_opt->flags ^= 1;
next:
msg_opt++;
}
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;
}
