169 lines
4.5 KiB
C
169 lines
4.5 KiB
C
#ifdef PLAN9
|
|
#pragma src "/sys/src/libauthsrv"
|
|
#pragma lib "libauthsrv.a"
|
|
#endif
|
|
|
|
/*
|
|
* Interface for talking to authentication server.
|
|
*/
|
|
typedef struct Ticket Ticket;
|
|
typedef struct Ticketreq Ticketreq;
|
|
typedef struct Authenticator Authenticator;
|
|
typedef struct Nvrsafe Nvrsafe;
|
|
typedef struct Passwordreq Passwordreq;
|
|
typedef struct OChapreply OChapreply;
|
|
typedef struct OMSchapreply OMSchapreply;
|
|
|
|
enum
|
|
{
|
|
ANAMELEN= 28, /* maximum size of name in previous proto */
|
|
AERRLEN= 64, /* maximum size of errstr in previous proto */
|
|
DOMLEN= 48, /* length of an authentication domain name */
|
|
DESKEYLEN= 7, /* length of a des key for encrypt/decrypt */
|
|
CHALLEN= 8, /* length of a plan9 sk1 challenge */
|
|
NETCHLEN= 16, /* max network challenge length (used in AS protocol) */
|
|
CONFIGLEN= 14,
|
|
SECRETLEN= 32, /* max length of a secret */
|
|
|
|
KEYDBOFF= 8, /* length of random data at the start of key file */
|
|
OKEYDBLEN= ANAMELEN+DESKEYLEN+4+2, /* length of an entry in old key file */
|
|
KEYDBLEN= OKEYDBLEN+SECRETLEN, /* length of an entry in key file */
|
|
OMD5LEN= 16,
|
|
};
|
|
|
|
/* encryption numberings (anti-replay) */
|
|
enum
|
|
{
|
|
AuthTreq=1, /* ticket request */
|
|
AuthChal=2, /* challenge box request */
|
|
AuthPass=3, /* change password */
|
|
AuthOK=4, /* fixed length reply follows */
|
|
AuthErr=5, /* error follows */
|
|
AuthMod=6, /* modify user */
|
|
AuthApop=7, /* apop authentication for pop3 */
|
|
AuthOKvar=9, /* variable length reply follows */
|
|
AuthChap=10, /* chap authentication for ppp */
|
|
AuthMSchap=11, /* MS chap authentication for ppp */
|
|
AuthCram=12, /* CRAM verification for IMAP (RFC2195 & rfc2104) */
|
|
AuthHttp=13, /* http domain login */
|
|
AuthVNC=14, /* VNC server login (deprecated) */
|
|
|
|
|
|
AuthTs=64, /* ticket encrypted with server's key */
|
|
AuthTc, /* ticket encrypted with client's key */
|
|
AuthAs, /* server generated authenticator */
|
|
AuthAc, /* client generated authenticator */
|
|
AuthTp, /* ticket encrypted with client's key for password change */
|
|
AuthHr, /* http reply */
|
|
};
|
|
|
|
struct Ticketreq
|
|
{
|
|
char type;
|
|
char authid[ANAMELEN]; /* server's encryption id */
|
|
char authdom[DOMLEN]; /* server's authentication domain */
|
|
char chal[CHALLEN]; /* challenge from server */
|
|
char hostid[ANAMELEN]; /* host's encryption id */
|
|
char uid[ANAMELEN]; /* uid of requesting user on host */
|
|
};
|
|
#define TICKREQLEN (3*ANAMELEN+CHALLEN+DOMLEN+1)
|
|
|
|
struct Ticket
|
|
{
|
|
char num; /* replay protection */
|
|
char chal[CHALLEN]; /* server challenge */
|
|
char cuid[ANAMELEN]; /* uid on client */
|
|
char suid[ANAMELEN]; /* uid on server */
|
|
char key[DESKEYLEN]; /* nonce DES key */
|
|
};
|
|
#define TICKETLEN (CHALLEN+2*ANAMELEN+DESKEYLEN+1)
|
|
|
|
struct Authenticator
|
|
{
|
|
char num; /* replay protection */
|
|
char chal[CHALLEN];
|
|
ulong id; /* authenticator id, ++'d with each auth */
|
|
};
|
|
#define AUTHENTLEN (CHALLEN+4+1)
|
|
|
|
struct Passwordreq
|
|
{
|
|
char num;
|
|
char old[ANAMELEN];
|
|
char new[ANAMELEN];
|
|
char changesecret;
|
|
char secret[SECRETLEN]; /* new secret */
|
|
};
|
|
#define PASSREQLEN (2*ANAMELEN+1+1+SECRETLEN)
|
|
|
|
struct OChapreply
|
|
{
|
|
uchar id;
|
|
char uid[ANAMELEN];
|
|
char resp[OMD5LEN];
|
|
};
|
|
|
|
struct OMSchapreply
|
|
{
|
|
char uid[ANAMELEN];
|
|
char LMresp[24]; /* Lan Manager response */
|
|
char NTresp[24]; /* NT response */
|
|
};
|
|
|
|
/*
|
|
* convert to/from wire format
|
|
*/
|
|
extern int convT2M(Ticket*, char*, char*);
|
|
extern void convM2T(char*, Ticket*, char*);
|
|
extern void convM2Tnoenc(char*, Ticket*);
|
|
extern int convA2M(Authenticator*, char*, char*);
|
|
extern void convM2A(char*, Authenticator*, char*);
|
|
extern int convTR2M(Ticketreq*, char*);
|
|
extern void convM2TR(char*, Ticketreq*);
|
|
extern int convPR2M(Passwordreq*, char*, char*);
|
|
extern void convM2PR(char*, Passwordreq*, char*);
|
|
|
|
/*
|
|
* convert ascii password to DES key
|
|
*/
|
|
extern int opasstokey(char*, char*);
|
|
extern int passtokey(char*, char*);
|
|
|
|
/*
|
|
* Nvram interface
|
|
*/
|
|
enum {
|
|
NVwrite = 1<<0, /* always prompt and rewrite nvram */
|
|
NVwriteonerr = 1<<1, /* prompt and rewrite nvram when corrupt */
|
|
};
|
|
|
|
struct Nvrsafe
|
|
{
|
|
char machkey[DESKEYLEN];
|
|
uchar machsum;
|
|
char authkey[DESKEYLEN];
|
|
uchar authsum;
|
|
char config[CONFIGLEN];
|
|
uchar configsum;
|
|
char authid[ANAMELEN];
|
|
uchar authidsum;
|
|
char authdom[DOMLEN];
|
|
uchar authdomsum;
|
|
};
|
|
|
|
extern uchar nvcsum(void*, int);
|
|
extern int readnvram(Nvrsafe*, int);
|
|
|
|
/*
|
|
* call up auth server
|
|
*/
|
|
extern int authdial(char *netroot, char *authdom);
|
|
|
|
/*
|
|
* exchange messages with auth server
|
|
*/
|
|
extern int _asgetticket(int, char*, char*);
|
|
extern int _asrdresp(int, char*, int);
|
|
extern int sslnegotiate(int, Ticket*, char**, char**);
|
|
extern int srvsslnegotiate(int, Ticket*, char**, char**);
|