release/src-rt-6.x.4708/router/nas_arm/nas_wksp.h

   1 /*
   2  * NAS WorkSpace - NAS application common code
   3  *
   4  * Copyright (C) 2013, Broadcom Corporation
   5  * All Rights Reserved.
   6  *
   7  * This is UNPUBLISHED PROPRIETARY SOURCE CODE of Broadcom Corporation;
   8  * the contents of this file may not be disclosed to third parties, copied
   9  * or duplicated in any form, in whole or in part, without the prior
  10  * written permission of Broadcom Corporation.
  11  *
  12  * $Id: nas_wksp.h 375254 2012-12-18 05:07:38Z $
  13  */
  14
  15 #ifndef __NAS_WKSP_H__
  16 #define __NAS_WKSP_H__
  17
  18 /* debug stuff */
  19 #ifdef BCMDBG
  20 #include <stdio.h>
  21 #include <string.h>
  22 extern int debug_nwksp;
  23 #define NASDBG(fmt, arg...)     (\
  24 { \
  25         if (debug_nwksp) { \
  26                 fprintf(stderr, "%s: "fmt, __FUNCTION__ , ##arg); \
  27         } \
  28 } \
  29 )
  30 #define NASHEX(mem, size)       (\
  31 { \
  32         if (debug_nwksp) { \
  33                 char buf[80]; \
  34                 int i, j, k; \
  35                 for (i = 0; i < size; ) { \
  36                         j = sprintf(buf, "%04X: ", i); \
  37                         for (k = 0; k < 16 && i < size; k++, i++) \
  38                                 j += sprintf(&buf[j], " %02X", mem[i]); \
  39                         printf("%s\n", buf); \
  40                 } \
  41         } \
  42 } \
  43 )
  44 #else   /* #if BCMDBG */
  45 #define NASDBG(fmt, arg...)
  46 #define NASHEX(mem, size)
  47 #endif  /* #if BCMDBG */
  48 #define NASMSG(fmt, arg...)     printf(fmt , ##arg)
  49
  50 #include <sys/types.h>
  51 #include <net/if.h>
  52 #include "bcmtimer.h"
  53 #include "nas.h"
  54 #include "wpa.h"
  55
  56 /*
  57  * The same source code can be built into either NAS server or
  58  * NAS supplicant.
  59  */
  60 #if !defined(NAS_WKSP_BUILD_NAS_AUTH) && !defined(NAS_WKSP_BUILD_NAS_SUPPL)
  61 #error must defined NAS_WKSP_BUILD_NAS_AUTH and/or NAS_WKSP_BUILD_NAS_SUPPL
  62 #endif
  63
  64 #define NAS_WKSP_PSK_LEN                                64
  65 #define NAS_WKSP_PASSPHRASE_MIN         8
  66 #define NAS_WKSP_PASSPHRASE_MAX         63
  67
  68 #define NAS_WKSP_MAX_USER_KEY_LEN       80
  69 #define NAS_WKSP_MAX_NUM_INTERFACES     66
  70
  71 #define NAS_WKSP_UNK_FILE_DESC          -1
  72
  73 #define NAS_WPA_CB_FLAG_SUPPL           WLIFU_WSEC_SUPPL        /* use nas as supplicant */
  74 #define NAS_WPA_CB_FLAG_AUTH                    WLIFU_WSEC_AUTH /* use nas as authenticator */
  75 #define NAS_WPA_CB_FLAG_WDS                     WLIFU_WSEC_WDS  /* nas in WDS mode */
  76 #define NAS_WPA_CB_FLAG_ERROR           0x80000000              /* error to init nas_t struct */
  77
  78 #define NAS_WKSP_FLAG_SHUTDOWN          1       /* Shutdown flag */
  79 #define NAS_WKSP_FLAG_REKEY             2       /* Rekey flag */
  80
  81 /* nas/wpa combo and lots of goodies, one per NAS instance */
  82 typedef struct nas_wpa_cb
  83 {
  84         nas_t nas;
  85         wpa_t wpa;
  86
  87         /* user-supplied psk passphrase */
  88         uint8 psk[NAS_WKSP_MAX_USER_KEY_LEN + 1];
  89         /* user-supplied radius secret */
  90         uint8 secret[NAS_WKSP_MAX_USER_KEY_LEN + 1];
  91         /* user-supplied wep key */
  92         uint8 wep[NAS_WKSP_MAX_USER_KEY_LEN + 1];
  93         /* wep key index */
  94         int index;
  95         /* run time flags */
  96         uint32 flags;
  97         /* wl unit # */
  98         int unit;
  99         /* back pointer */
 100         struct nas_wksp *nwksp;
 101 } nas_wpa_cb_t;
 102
 103 /* nas work space */
 104 typedef struct nas_wksp
 105 {
 106         /* packet buffer for reading socket */
 107         uint8 packet[RADIUS_MAX_LEN];
 108         /* file dscc set for select() */
 109         fd_set fdset;
 110         int fdmax;
 111         /* receive/send eapol/bcmevent/preauth type packets to eapd */
 112         int eapd;
 113         /* timer module id */
 114         bcm_timer_module_id timer;
 115         /* run time flags */
 116         uint32 flags;
 117         /* # of i/f (in/out) */
 118         int nwcbs;
 119         /* nas_wpa_cb_t list */
 120         nas_wpa_cb_t *nwcb[NAS_WKSP_MAX_NUM_INTERFACES];
 121 } nas_wksp_t;
 122
 123 typedef enum {
 124         NAS_WKSP_NWCB_SEARCH_ONLY = 0,
 125         NAS_WKSP_NWCB_SEARCH_ENTER
 126 } nwcb_lookup_mode_t;
 127
 128 #ifdef NAS_WKSP_ON_DEMAND
 129 #define NAS_WKSP_NWCB_AUTO      NAS_WKSP_NWCB_SEARCH_ENTER
 130 #define NAS_WKSP_ADD_NWCB(nwksp, mac, osifname) nas_wksp_add_nwcb(nwksp, mac, osifname)
 131 #else
 132 #define NAS_WKSP_NWCB_AUTO      NAS_WKSP_NWCB_SEARCH_ONLY
 133 #define NAS_WKSP_ADD_NWCB(nwksp, mac, osifname) (NULL)
 134 #endif /* #ifdef NAS_WKSP_ON_DEMAND */
 135
 136
 137 #ifdef __cplusplus
 138 extern "C" {
 139 #endif
 140
 141 /* Common */
 142 void nas_wksp_display_usage(void);
 143 int nas_wksp_parse_cmd(int argc, char *argv[], nas_wksp_t *nwksp);
 144 nas_wksp_t *nas_wksp_alloc_workspace(void);
 145 void nas_wksp_free_workspace(nas_wksp_t *nwksp);
 146 nas_wpa_cb_t *nas_wksp_find_nwcb(nas_wksp_t *nwksp, uint8 *mac, char *osifname, int mode);
 147 int nas_wksp_init(nas_wksp_t *nwksp);
 148 void nas_wksp_cleanup(nas_wksp_t *nwksp);
 149 int nas_wksp_main_loop(nas_wksp_t *nwksp);
 150 void nas_wksp_dispatch_packet(nas_wksp_t *rootnwksp);
 151 void nas_wksp_clear_inited(void);
 152 int nas_wksp_is_inited(void);
 153
 154
 155 /* Socket specific */
 156 int nas_wksp_open_eapd(nas_wksp_t *rootnwksp);
 157 void nas_wksp_close_eapd(nas_wksp_t *rootnwksp);
 158
 159 int nas_validate_wlpvt_message(int bytes, uint8 *pkt);
 160 int nas_handle_wlpvt_messages(nas_wpa_cb_t *nwcb, void *dpkt, int bytes);
 161 void nas_eapol_message_dispatch(nas_wpa_cb_t *nwcb, void *eapol, int bytes);
 162
 163 /* OS dependent */
 164 int nas_safe_get_conf(char *outval, int outval_size, char *name);
 165
 166
 167 #ifdef __cplusplus
 168 }
 169 #endif
 170
 171 #endif  /* ifndef __NAS_WKSP_H__ */