Sip over Websocket

[Pastor02]

Hi, i'm try to connect a server with sip over websocket, but in the register return the next error --> Invalid argument

i dont know if i skip initialize any struct.

#define USER    "user"
#define PASS    "pass"
#define DOMAIN  "domain.com"
#define URI     "sip:" USER "@" DOMAIN

const char *registrar  = "sip:[ip]:443";

static struct sipreg *reg;
static struct sip *sip;
static struct sipsess_sock *sess_sock;
static struct sip_auth **sip_auth =NULL;

/*!
 * Authentication handler
 */
static int auth_handler(char **user, char **pass, const char *realm, void *arg)
{

    int err = 0;
    (void)realm;
    (void)arg;

    err |= str_dup(user, USER);
    err |= str_dup(pass, PASS);


    return err;
}



static void resp_handler(int err, const struct sip_msg *msg, void *arg)
{
    LOGI("<<-- Response handler.\n");
    LOGI("Argument from sip_drequestf : %s\n", (char*)arg);
    //LOGI("Response code: %d\n", msg->scode);
    if (err){
        LOGI("Error in reposponse handler: %s\n", strerror(err));
        return;
    }
    LOGI("----- response received ----\n");
    LOGI("%s", msg->mb->buf);
    LOGI("----------------------------\n");
    re_cancel();
}


/*!
 * Exit handler
 */
static void exit_handler(void *arg)
{
    (void)arg;

    /* stop libre main loop */
    re_cancel();
}

/*!
 * Signal handler
 */
static void signal_handler(int sig)
{
    LOGI("terminating on signal %d...\n", sig);

    /* terminate registration */
    reg = mem_deref(reg);

    /* wait for pending transactions to finish */
    sip_close(sip, false);
}



void sip_ws( ){
    struct sa nsv[16];
    struct dnsc *dnsc = NULL;
    struct sa laddr;
    uint32_t nsc;
    int err = 0;
    struct re_printf *pf;


    /* enable coredumps to aid debugging */
    (void)sys_coredump_set(true);

    /* initialize libre state */
    err = libre_init();
    if (err) {
        LOGI("re init failed: %s\n", strerror(err));
        goto exit;
    }

    nsc = ARRAY_SIZE(nsv);



    /* create SIP stack instance */
    err = sip_alloc(&sip, NULL, 32, 32, 32,
                    "PandaTalk2" VERSION " (" ARCH "/" OS ")",
                    exit_handler, NULL);
    LOGI("Create SIP stack instance.\n");

    if (err) {
        LOGI( "ERROR  SIP ALLOC: [%d] %s\n", err, strerror(err));
        goto exit;
    }


    /* fetch local IP address */
    err = net_default_source_addr_get(AF_INET, &laddr);
    LOGI("Fetch local IP address.\n");

    if (err) {
        LOGI( "ERROR EN LOCAL IP ADDRESS: [%d] %s\n", err, strerror(err));
        goto exit;
    }



    sa_set_port(&laddr, 0);
    LOGI("Set port.\n");

    bool server = false ;


    /* add supported SIP transports */
    err |= sip_transp_add_websock(sip, SIP_TRANSP_WSS, &laddr, false,"");

    if (err) {
        LOGI( "ERROR EN SIP CON WEBSOCKET PORT: [%d] %s\n", err, strerror(err));
        goto exit;
    }

    LOGI("Add WSS SIP transport.\n");

// this function return error

    /* register UA */

    err = sipreg_register(&reg, sip, registrar, URI, URI, URI, 60,
                          USER, 0, 0, 0, auth_handler, NULL,
                          0, resp_handler, NULL, NULL,NULL);


    if (err) {
        LOGI( "register error: [%d] %s\n", err, strerror(err));
        goto exit;
    }

    LOGI("registering <%s>...\n", URI);

    /* main loop */
    err = re_main(signal_handler);

    LOGI( "ERROR MAIN LOOP : [%d] %s\n", err, strerror(err));

    exit:
        mem_deref(sess_sock);
        mem_deref(sip);
        mem_deref(dnsc);

        libre_close();

        tmr_debug();
        mem_debug();

}

Thanks for the help.

[sreimers]

Hi, i'm try to connect a server with sip over websocket, but in the register return the next error --> Invalid argument

This means one of these are not configured.

re/src/sipreg/reg.c

Line 350 in a9e1ffe

if (!regp || !sip || !reg_uri || !to_uri || !from_uri || !cuser)

But it could also a return code from a subsequent function call.

It is difficult to analyze custom code just from comments. If you can upload a compilable example, it would be easier to check.

A simple example for this could be the https://github.com/creytiv/redemo project. Maybe you can adjust the src/sip_ua/sip_ua.c to your needs.