Hi Ole,
My requirement is to sniff the NTP packets using a raw sockets, and process
them in my application.
I new bee to VPP world.
>>The message IDs are dynamic and depend on which plugins are loaded.
i do not understand exactly.
Thanks,
Nousi
On Wed, 9 Mar 2022 at 17:35, <otr...@employees.org> wrote:
> Hi,
>
> > I am not getting a reply from vpp.
> > Any pointers will be helpful.
> > Thanks in advance.
> >
> > logs below. after " writing punt socket register...:" log it does
> not come out.
> >
> > NTPSYNC-TEST:: app start
> > NTPSYNC-TEST:: VPP Server Socket bind Successful
> (/var/run/vpp-punt.sock)
> > NTPSYNC-TEST:: Connected to vpp...: 0
> > NTPSYNC-TEST:: message id VL_API_PUNT_SOCKET_REGISTER 694
> > NTPSYNC-TEST:: message id VL_API_PUNT_SOCKET_REGISTER 695
>
> The message IDs are dynamic and depend on which plugins are loaded.
> Are you sure these are correct?
>
> VAPI provides a much higher level C interface. src/vpp-api/vapi/
> Which would allow you to write much less boilerplate.
>
> Ole
>
> > NTPSYNC-TEST:: type=1 , ntohl=16777216, htonl=16777216
> > NTPSYNC-TEST:: protocol = 17
> > NTPSYNC-TEST:: writing punt socket register...:
> >
> >
> > code:
> > ----------------
> > const char* Unix_socket_path = "/var/run/vpp-punt.sock";
> >
> > int main()
> > {
> > openlog("NTPSYNC-TEST:",0, LOG_USER);
> > syslog(LOG_INFO, "app start");
> >
> > unix_socket_rd = -1;
> > unix_socket_wr = -1;
> > strncpy(strAppName, appName, strlen(appName));
> > maxOutStandingReq = maxOutSize;
> > responseQueSize = respSize;
> >
> > int len, rc;
> > struct sockaddr_un remote;
> >
> > memset(&remote, 0, sizeof(struct sockaddr_un));
> >
> > unix_socket_rd = socket(AF_UNIX, SOCK_DGRAM, 0);
> > if (unix_socket_rd == -1)
> > {
> > syslog(LOG_ERR, "VPP Server socket error (%s)", strerror(errno));
> > return;
> > }
> >
> > remote.sun_family = AF_UNIX;
> > strcpy(remote.sun_path, Unix_socket_path);
> > len = sizeof(remote);
> > unlink(Unix_socket_path);
> > rc = bind(unix_socket_rd, (struct sockaddr *) &remote, len);
> > if (rc == -1)
> > {
> > syslog(LOG_ERR, "VPP Server Socket bind failed (%s)",
> strerror(errno));
> > close(unix_socket_rd);
> > return;
> > }
> > else
> > {
> > syslog(LOG_INFO, "VPP Server Socket bind Successful (%s)",
> Unix_socket_path);
> > }
> >
> > clib_mem_init(0, 3ULL << 30);
> > test_punt_socket_register_message();
> > }
> >
> > void test_punt_socket_register_message()
> > {
> > api_main_t * am = vlibapi_get_main();
> > vl_api_punt_socket_register_t *mp;
> > char *read_path = "/var/run/vpp.sock";
> > int async = 1;
> >
> > int rv = vac_connect("vac_client", NULL, wrap_vac_callback, 32 );
> > if (rv != 0)
> > {
> > syslog(LOG_INFO, "Connect failed: %d \n", rv);
> > exit(rv);
> > }
> >
> > syslog(LOG_INFO,"Connected to vpp...: %d\n", rv);
> > double timestamp_start = unix_time_now_nsec() * 1e-6;
> >
> > if (async)
> > {
> > mp = vl_msg_api_alloc(sizeof(*mp));
> > memset(mp, 0, sizeof(*mp));
> > mp->_vl_msg_id = ntohs(VL_API_PUNT_SOCKET_REGISTER);
> > syslog(LOG_INFO," message id VL_API_PUNT_SOCKET_REGISTER
> %d", VL_API_PUNT_SOCKET_REGISTER);
> > syslog(LOG_INFO," message id VL_API_PUNT_SOCKET_REGISTER
> %d", VL_API_PUNT_SOCKET_REGISTER_REPLY);
> > mp->header_version = ntohl(1);
> > mp->punt.type = PUNT_API_TYPE_L4;
> > mp->punt.punt.l4.af = ADDRESS_IP4;
> > mp->punt.punt.l4.protocol = IP_PROTOCOL_UDP;
> > mp->punt.punt.l4.port = ntohs(123);
> > mp->client_index = am->my_client_index;
> > strncpy((char*) mp->pathname, read_path, 107);
> > syslog(LOG_INFO, " type=%u , ntohl=%u, htonl=%u", PUNT_API_TYPE_L4,
> clib_host_to_net_u32(PUNT_API_TYPE_L4),
> clib_net_to_host_u32(PUNT_API_TYPE_L4));
> > syslog(LOG_INFO, " protocol = %u", IP_PROTOCOL_UDP);
> >
> > syslog(LOG_INFO, " writing punt socket register...: \n");
> > vac_write((char *)mp, sizeof(*mp));
> >
> > while (result_msg_id !=
> VL_API_PUNT_SOCKET_REGISTER_REPLY);
> > }
> >
> > syslog(LOG_INFO," message id VL_API_PUNT_SOCKET_REGISTER %d",
> VL_API_CONTROL_PING_REPLY);
> > if (async)
> > {
> > vl_api_control_ping_t control;
> > vl_api_control_ping_t *mp;
> > mp = &control;
> > M_NOALLOC(CONTROL_PING, control_ping);
> > syslog(LOG_INFO," writing control ping message...: \n");
> > vac_write((char *)mp, sizeof(*mp));
> >
> > while (result_msg_id != VL_API_CONTROL_PING_REPLY);
> > }
> >
> > double timestamp_end = unix_time_now_nsec() * 1e-6;
> > syslog(LOG_INFO,"\nTook %.2f msec, %.0f msgs/msec \n",
> (timestamp_end - timestamp_start),
> > 1/(timestamp_end -
> timestamp_start));
> > syslog(LOG_INFO,"Exiting...\n");
> > vac_disconnect();
> > }
> >
> > --
> > Thanks & Regards,
> > B.Nousilal,
> >
> >
> >
> >
>
>
--
*Thanks & Regards,B.Nousilal,*
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