Ejemplo n.º 1
0
void
solaris_contract_post_fork_parent(pid_t pid)
{
	ctid_t ctid;
	char ctl_path[256];
	int r, ctl_fd = -1, stat_fd = -1;

	debug2("%s: clearing template (fd %d)", __func__, tmpl_fd);

	if (tmpl_fd == -1)
		return;

	/* First clear the active template. */
	if ((r = ct_tmpl_clear(tmpl_fd)) != 0)
		error("%s: Error clearing active process contract "
		    "template: %s", __func__, strerror(errno));

	close(tmpl_fd);
	tmpl_fd = -1;

	/*
	 * If either the fork didn't succeed (pid < 0), or clearing
	 * th active contract failed (r != 0), then we have nothing
	 * more do.
	 */
	if (r != 0 || pid <= 0)
		return;

	/* Now lookup and abandon the contract we've created. */
	ctid = get_active_process_contract_id();

	debug2("%s: abandoning contract id %ld", __func__, ctid);

	snprintf(ctl_path, sizeof(ctl_path),
	    CTFS_ROOT "/process/%ld/ctl", ctid);
	if ((ctl_fd = open64(ctl_path, O_WRONLY)) < 0) {
		error("%s: Error opening process contract "
		    "ctl file: %s", __func__, strerror(errno));
		goto fail;
	}
	if (ct_ctl_abandon(ctl_fd) < 0) {
		error("%s: Error abandoning process contract: %s",
		    __func__, strerror(errno));
		goto fail;
	}
	close(ctl_fd);
	return;

 fail:
	if (tmpl_fd != -1) {
		close(tmpl_fd);
		tmpl_fd = -1;
	}
	if (stat_fd != -1)
		close(stat_fd);
	if (ctl_fd != -1)
		close(ctl_fd);
}
Ejemplo n.º 2
0
static int
contract_abandon_id(ctid_t ctid) {
  int fd = 0;
  int err = 0;

  fd = contract_open(ctid, "all", "ctl", O_WRONLY);
  if (fd == -1)
    return (errno);

  err = ct_ctl_abandon(fd);
  (void) close(fd);

  return (err);
}
Ejemplo n.º 3
0
static void rtSolarisContractPostForkParent(int templateFd, pid_t pid)
{
    if (templateFd == -1)
        return;

    /* Clear the active template. */
    int cleared = ct_tmpl_clear(templateFd);
    close(templateFd);

    /* If the clearing failed or the fork failed there's nothing more to do. */
    if (cleared || pid <= 0)
        return;

    /* Look up the contract which was created by this thread. */
    int statFd = open64(CTFS_ROOT "/process/latest", O_RDONLY);
    if (statFd == -1)
        return;
    ct_stathdl_t statHdl;
    if (ct_status_read(statFd, CTD_COMMON, &statHdl))
    {
        close(statFd);
        return;
    }
    ctid_t ctId = ct_status_get_id(statHdl);
    ct_status_free(statHdl);
    close(statFd);
    if (ctId < 0)
        return;

    /* Abandon this contract we just created. */
    char ctlPath[PATH_MAX];
    size_t len = snprintf(ctlPath, sizeof(ctlPath),
                          CTFS_ROOT "/process/%ld/ctl", (long)ctId);
    if (len >= sizeof(ctlPath))
        return;
    int ctlFd = open64(ctlPath, O_WRONLY);
    if (statFd == -1)
        return;
    if (ct_ctl_abandon(ctlFd) < 0)
    {
        close(ctlFd);
        return;
    }
    close(ctlFd);
}