release/src/router/pptp-client/orckit_quirks.c

   1 /* orckit_quirks.c ...... fix quirks in orckit adsl modems
   2  *                        mulix <mulix@actcom.co.il>
   3  *
   4  * $Id: orckit_quirks.c,v 1.3 2002/03/01 01:23:36 quozl Exp $
   5  */
   6
   7 #include <string.h>
   8 #include <sys/types.h>
   9 #include <netinet/in.h>
  10 #include "pptp_msg.h"
  11 #include "pptp_options.h"
  12 #include "pptp_ctrl.h"
  13 #include "util.h"
  14
  15
  16
  17 /* return 0 on success, non zero otherwise */
  18 int
  19 orckit_atur3_build_hook(struct pptp_out_call_rqst* packet)
  20 {
  21     unsigned int name_length = 10;
  22
  23     struct pptp_out_call_rqst fixed_packet = {
  24         PPTP_HEADER_CTRL(PPTP_OUT_CALL_RQST),
  25         0, /* hton16(call->callid) */
  26         0, /* hton16(call->sernum) */
  27         hton32(PPTP_BPS_MIN), hton32(PPTP_BPS_MAX),
  28         hton32(PPTP_BEARER_DIGITAL), hton32(PPTP_FRAME_ANY),
  29         hton16(PPTP_WINDOW), 0, hton16(name_length), 0,
  30         {'R','E','L','A','Y','_','P','P','P','1',0}, {0}
  31     };
  32
  33     if (!packet)
  34         return -1;
  35
  36     memcpy(packet, &fixed_packet, sizeof(*packet));
  37
  38     return 0;
  39 }
  40
  41 /* return 0 on success, non zero otherwise */
  42 int
  43 orckit_atur3_set_link_hook(struct pptp_set_link_info* packet,
  44                            int peer_call_id)
  45 {
  46     struct pptp_set_link_info fixed_packet = {
  47         PPTP_HEADER_CTRL(PPTP_SET_LINK_INFO),
  48         hton16(peer_call_id),
  49         0,
  50         0xffffffff,
  51         0xffffffff};
  52
  53     if (!packet)
  54         return -1;
  55
  56     memcpy(packet, &fixed_packet, sizeof(*packet));
  57     return 0;
  58 }
  59
  60 /* return 0 on success, non 0 otherwise */
  61 int
  62 orckit_atur3_start_ctrl_conn_hook(struct pptp_start_ctrl_conn* packet)
  63 {
  64     struct pptp_start_ctrl_conn fixed_packet = {
  65         {0}, /* we'll set the header later */
  66         hton16(PPTP_VERSION), 0, 0,
  67         hton32(PPTP_FRAME_ASYNC), hton32(PPTP_BEARER_ANALOG),
  68         hton16(0) /* max channels */,
  69         hton16(0x6021),
  70         {'R','E','L','A','Y','_','P','P','P','1',0}, /* hostname */
  71         {'M','S',' ','W','i','n',' ','N','T',0} /* vendor */
  72     };
  73
  74     if (!packet)
  75         return -1;
  76
  77     /* grab the header from the original packet, since we dont
  78        know if this is a request or a reply */
  79     memcpy(&fixed_packet.header, &packet->header, sizeof(struct pptp_header));
  80
  81     /* and now overwrite the full packet, effectively preserving the header */
  82     memcpy(packet, &fixed_packet, sizeof(*packet));
  83     return 0;
  84 }
  85
  86