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coova-chilli

    1: /* 
    2:  * HTTP redirection functions.
    3:  * Copyright (C) 2004, 2005 Mondru AB.
    4:  * Copyright (c) 2006-2007 David Bird <david@coova.com>
    5:  * 
    6:  * The contents of this file may be used under the terms of the GNU
    7:  * General Public License Version 2, provided that the above copyright
    8:  * notice and this permission notice is included in all copies or
    9:  * substantial portions of the software.
   10:  * 
   11:  */
   12: 
   13: 
   14: #ifndef _REDIR_H
   15: #define _REDIR_H
   16: 
   17: #include "dhcp.h"
   18: #include "session.h"
   19: 
   20: #define REDIR_TERM_INIT       0  /* Nothing done yet */
   21: #define REDIR_TERM_GETREQ     1  /* Before calling redir_getreq */
   22: #define REDIR_TERM_GETSTATE   2  /* Before calling cb_getstate */
   23: #define REDIR_TERM_PROCESS    3  /* Started to process request */
   24: #define REDIR_TERM_RADIUS     4  /* Calling radius */
   25: #define REDIR_TERM_REPLY      5  /* Sending response to client */
   26: 
   27: #define REDIR_LOGIN           1
   28: #define REDIR_PRELOGIN        2
   29: #define REDIR_LOGOUT          3
   30: #define REDIR_CHALLENGE       4
   31: #define REDIR_ABORT           5
   32: #define REDIR_ABOUT           6
   33: #define REDIR_STATUS          7
   34: #define REDIR_SPLASH          8
   35: #define REDIR_WWW            20
   36: #define REDIR_MSDOWNLOAD     25
   37: #define REDIR_ADMIN_CONN     30
   38: #define REDIR_ALREADY        50 /* Reply to /logon while allready logged on */
   39: #define REDIR_FAILED_REJECT  51 /* Reply to /logon if authentication reject */
   40: #define REDIR_FAILED_OTHER   52 /* Reply to /logon if authentication timeout */
   41: #define REDIR_SUCCESS        53 /* Reply to /logon if authentication successful */
   42: #define REDIR_LOGOFF         54 /* Reply to /logff */
   43: #define REDIR_NOTYET         55 /* Reply to /prelogin or any GET request */
   44: #define REDIR_ABORT_ACK      56 /* Reply to /abortlogin */
   45: #define REDIR_ABORT_NAK      57 /* Reply to /abortlogin */
   46: 
   47: #define REDIR_FMT_DEFAULT     0
   48: #define REDIR_FMT_JSON        1
   49: 
   50: #define REDIR_MSG_OPT_REDIR   1
   51: #define REDIR_MSG_OPT_PARAMS  2
   52: 
   53: struct redir_conn_t {
   54:   /* 
   55:    *  Parameters from HTTP request 
   56:    */
   57:   unsigned short type;                 /* REDIR_LOGOUT, LOGIN, PRELOGIN, CHALLENGE, MSDOWNLOAD */
   58:   unsigned char format;                /* REDIR_FMT_DEFAULT, REDIR_FMT_JSON */
   59:   char useragent[REDIR_USERAGENTSIZE]; /* Browser User-Agent */
   60:   char lang[REDIR_LANGSIZE];           /* Query string parameter for language */
   61:   char wwwfile[REDIR_USERNAMESIZE];    /* File request, i.e. PATH_INFO */
   62: 
   63:   /*
   64:    *  Authentication state information
   65:    */
   66:   int chap; /* 0 if using normal password; 1 if using CHAP */
   67:   int response; /* 0: No radius response yet; 1:Reject; 2:Accept; 3:Timeout */
   68:   uint8_t chappassword[REDIR_MAXCHAR];
   69:   uint8_t password[REDIR_MAXCHAR];
   70:   uint8_t chap_ident;
   71:   
   72:   /* 
   73:    *  RADIUS session parameters 
   74:    */
   75:   struct in_addr nasip;
   76:   uint32_t nasport;
   77:   uint8_t hismac[PKT_ETH_ALEN];/* His MAC address */
   78:   uint8_t ourmac[PKT_ETH_ALEN];/* Our MAC address */
   79:   struct in_addr ourip;        /* IP address to listen to */
   80:   struct in_addr hisip;        /* Client IP address */
   81: 
   82:   /*
   83:    *  RADIUS Reply-Message
   84:    */
   85:   char replybuf[RADIUS_ATTR_VLEN+1];
   86:   char *reply;
   87: 
   88:   /*
   89:    *  Chilli Session parameters and status
   90:    */
   91:   struct session_params s_params;
   92:   struct session_state s_state;
   93: };
   94: 
   95: struct redir_t {
   96:   int fd[2];             /* File descriptors */
   97:   int debug;
   98:   int msgid;             /* Message Queue */
   99:   struct in_addr addr;
  100:   int port;
  101:   int uiport;
  102:   char *url;
  103:   char *homepage;
  104:   char *secret;
  105:   char *ssid;
  106:   char *nasmac;
  107:   char *nasip;
  108:   struct in_addr radiuslisten;
  109:   struct in_addr radiusserver0;
  110:   struct in_addr radiusserver1;
  111:   uint16_t radiusauthport;
  112:   uint16_t radiusacctport;
  113:   char *radiussecret;
  114:   char *radiusnasid;
  115:   char* radiuslocationid;
  116:   char* radiuslocationname;
  117:   char* locationname;
  118:   int radiusnasporttype;
  119:   int starttime;
  120:   int chillixml;     /* Send chilli specific XML along with WISPr */
  121:   int no_uamsuccess; /* Do not redirect back to uamserver on success */
  122:   int no_uamwispr;   /* Do not have Chilli return WISPr blocks */
  123:   int (*cb_getstate) (struct redir_t *redir, struct in_addr *addr,
  124: 		      struct redir_conn_t *conn);
  125: };
  126: 
  127: struct redir_msg_t {
  128:   long mtype;
  129:   struct redir_msg_data {
  130:     uint16_t opt;
  131:     struct in_addr addr;
  132:     struct redir_state redir;
  133:     struct session_params params;
  134:   } mdata;
  135: };
  136: 
  137: 
  138: int redir_new(struct redir_t **redir, struct in_addr *addr, int port, int uiport);
  139: 
  140: int redir_free(struct redir_t *redir);
  141: 
  142: void redir_set(struct redir_t *redir, int debug);
  143: 
  144: int redir_accept(struct redir_t *redir, int idx);
  145: 
  146: int redir_setchallenge(struct redir_t *redir, struct in_addr *addr, uint8_t *challenge);
  147: 
  148: int redir_set_cb_getstate(struct redir_t *redir,
  149:   int (*cb_getstate) (struct redir_t *redir, struct in_addr *addr,
  150: 		      struct redir_conn_t *conn));
  151: 
  152: int redir_main(struct redir_t *redir, int infd, int outfd, struct sockaddr_in *address, int isui);
  153: 
  154: int redir_json_fmt_redir(struct redir_conn_t *conn, bstring json, 
  155: 			 char *userurl, char *redirurl, uint8_t *hismac);
  156: 
  157: int redir_json_fmt_session(struct redir_conn_t *conn, bstring json, int init);
  158: 
  159: #endif	/* !_REDIR_H */