static int pppoe_payload_parse(PPPoETags *tags, struct pppoe_hdr *header) {
struct pppoe_tag *tag;
int r;
assert(tags);
pppoe_tags_clear(tags);
PPPOE_TAGS_FOREACH(tag, header) {
switch (PPPOE_TAG_TYPE(tag)) {
case PTT_SRV_NAME:
r = pppoe_tag_parse_string(tag, &tags->service_name);
if (r < 0)
return r;
break;
case PTT_AC_NAME:
r = pppoe_tag_parse_string(tag, &tags->ac_name);
if (r < 0)
return r;
break;
case PTT_HOST_UNIQ:
r = pppoe_tag_parse_binary(tag, &tags->host_uniq, &tags->host_uniq_len);
if (r < 0)
return r;
break;
case PTT_AC_COOKIE:
r = pppoe_tag_parse_binary(tag, &tags->cookie, &tags->cookie_len);
if (r < 0)
return r;
break;
case PTT_SRV_ERR:
case PTT_SYS_ERR:
case PTT_GEN_ERR:
{
_cleanup_free_ char *error = NULL;
/* TODO: do something more sensible with the error messages */
r = pppoe_tag_parse_string(tag, &error);
if (r < 0)
return r;
if (strlen(error) > 0 && utf8_is_valid(error))
log_debug("PPPoE: error - '%s'", error);
else
log_debug("PPPoE: error");
break;
}
default:
log_debug("PPPoE: ignoring unknown PPPoE tag type: 0x%.2x", PPPOE_TAG_TYPE(tag));
}
}
return 0;
}
sd_pppoe *sd_pppoe_unref(sd_pppoe *ppp) {
if (ppp && REFCNT_DEC(ppp->n_ref) <= 0) {
pppoe_tags_clear(&ppp->tags);
free(ppp->ifname);
free(ppp->service_name);
sd_pppoe_stop(ppp);
sd_pppoe_detach_event(ppp);
free(ppp);
}
return NULL;
}
sd_pppoe *sd_pppoe_unref(sd_pppoe *ppp) {
if (!ppp)
return NULL;
assert(ppp->n_ref > 0);
ppp->n_ref--;
if (ppp->n_ref > 0)
return NULL;
pppoe_tags_clear(&ppp->tags);
free(ppp->ifname);
free(ppp->service_name);
sd_pppoe_stop(ppp);
sd_pppoe_detach_event(ppp);
free(ppp);
return NULL;
}
