static struct wpabuf * eap_ikev2_buildReq(struct eap_sm *sm, void *priv, u8 id) { struct eap_ikev2_data *data = priv; switch (data->state) { case MSG: if (data->out_buf == NULL) { data->out_buf = ikev2_initiator_build(&data->ikev2); if (data->out_buf == NULL) { wpa_printf(MSG_DEBUG, "EAP-IKEV2: Failed to " "generate IKEv2 message"); return NULL; } data->out_used = 0; } /* pass through */ case WAIT_FRAG_ACK: return eap_ikev2_build_msg(data, id); case FRAG_ACK: return eap_ikev2_build_frag_ack(id, EAP_CODE_REQUEST); default: wpa_printf(MSG_DEBUG, "EAP-IKEV2: Unexpected state %d in " "buildReq", data->state); return NULL; } }
static struct wpabuf * eap_ikev2_process_fragment(struct eap_ikev2_data *data, struct eap_method_ret *ret, u8 id, u8 flags, u32 message_length, const u8 *buf, size_t len) { /* Process a fragment that is not the last one of the message */ if (data->in_buf == NULL && !(flags & IKEV2_FLAGS_LENGTH_INCLUDED)) { wpa_printf(MSG_DEBUG, "EAP-IKEV2: No Message Length field in " "a fragmented packet"); ret->ignore = TRUE; return NULL; } if (data->in_buf == NULL) { /* First fragment of the message */ data->in_buf = wpabuf_alloc(message_length); if (data->in_buf == NULL) { wpa_printf(MSG_DEBUG, "EAP-IKEV2: No memory for " "message"); ret->ignore = TRUE; return NULL; } wpabuf_put_data(data->in_buf, buf, len); wpa_printf(MSG_DEBUG, "EAP-IKEV2: Received %lu bytes in first " "fragment, waiting for %lu bytes more", (unsigned long) len, (unsigned long) wpabuf_tailroom(data->in_buf)); } return eap_ikev2_build_frag_ack(id, EAP_CODE_RESPONSE); }