I was wrong about one thing. The snippets where I use GNRC_NETTYPE_RFPKT are OK, but instead of GNRC_NETTYPE_RFPKT I only see GNRC_NETTYPE_UNDEF in the type in the packet over UDP. Viktor
2016-02-16 17:08 GMT+01:00 Viktor Váczi <[email protected]>: > Hi! > First of all: thanks for everyone for your help so far. > I'm using RIOT in an RPL network and I'm trying to send UDP packets with a > custom application level data. I developed a solution which is similar to > the udp packet handling in the gnrc_networking example. > In the networking example the payload is the following: > payload = gnrc_pktbuf_add(NULL, data, strlen(data), GNRC_NETTYPE_UNDEF); > I registered my thread to gnrc with the following lines: > server.pid = rfnode_udpthread_init(); > server.demux_ctx = (uint32_t)port; > gnrc_netreg_register(GNRC_NETTYPE_UDP, &server); > printf("Success: started UDP server on port %d\n",(int) port); > When my eventloop catches a GNRC_NETAPI_MSG_TYPE_RCV then it calls my > function when I get the data out of the msg. > In the message handler I filter for: > snip->type == GNRC_NETTYPE_UNDEF > > It works right if I open a direct connection, but if I set up an RPL > netowork with multiple nodes, then if I send any packet to a destination ( > by the IP in the fibroute cmd ) then it catches so many snippets ( possibly > for RPL? ), so its not usable. > I did some debugging, and the snippets seems to be all right > (UNDEF->UDP->IPV6->NETAPI in the snippet). > > I added my own GNRC type into gnrc_nettype_t in nettype.h > called GNRC_NETTYPE_RFPKT, so I could filter it: > payload = gnrc_pktbuf_add(NULL, data, strlen(data), GNRC_NETTYPE_RFPKT); > I also filter for this type in my msg handler: > snip->type == GNRC_NETTYPE_RFPKT > and it doesn't catch any, and the snippets which I get also seem to be > wrong, and I don't see my type in the snippets anywhere. > > I think that I'm using the networking stack in wrong way, what am I > missing? > Viktor >
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